First, the quality of the available test chip cooling a battery test
Methods of operation are: a hand pinch the sides of chip cooling , refrigeration wire another piece by hand on the battery terminals ( red line by the positive electrode, the black line on the negative press ) , if we feel side Weileng side slightly hot , then cooling film is good, normal work.
Second, chip cooling refrigeration side is the side of the working state of fever, when cooling piece of work must give good thermal hot surface , is strictly prohibited without cooling conditions for chip cooling is energized more than two seconds , causing overheating burned buyers own risk. Powered refrigeration cold tablets must be cold when switching sides restored to room temperature ( it normally takes five minutes or more ) can be carried out , otherwise easily lead to breakage and damage to the refrigeration circuit chip ceramic panel.
Third, when the film is used as refrigeration refrigeration , red positive power supply , the black wire to the negative power supply , the power required ripple of less than 10 % of the switching power supply. General welded wire panels that face the ceramic hot surface . If the red wire power negative , black to the positive power supply , the chip cooling hot and cold face tone .
Fourth, chip cooling the hot side heat sink is not installed when you do not turn on the power ; hot surface temperature is too high will cause poor cooling limit temperature 100 degrees cooler than the hot surface of the film , which led chip cooling overheated burn. Because the refrigerator temperature difference between the hot and cold surfaces using tablets were cooling , so the lower the temperature of the hot surface , the lower surface temperature , the cooling effect will be better.
Fifth, refrigeration film is a combination of both sides of the ceramic panels and semiconductor materials through low-temperature solder , the intensity is not high , is fragile, be sure to ask the user gently , do not bump , not to fall from a height Next , to avoid damage to the ceramic panels rupture .
Six chip cooling model naming is composed of six parts . For example TEC1-12706
The first part : The TE said thermoelectric cooling modules , Thermo-Electric is the English abbreviation ;
The second part : that structural classes refrigeration piece , commonly used type of ceramic chip cooling ( thermoelectric element cross-sectional area greater than 1mm2) represented by C , small ceramic -type thermoelectric cooling modules , also known as micro- electric cooling modules ( temperature difference electrical components sectional area ≤ 1mm2) with S said , there is a metal structure represented by M;
Part III : Indicates chip cooling layers ( series ) , with an Arabic numerals, refrigeration piece from one layer to the layers 6 layers ranging from the more layers , the greater the temperature difference .
Part IV: galvanic said chip cooling logarithm ( the number of P, N nodes ) , with three Arabic numerals, such as 127 pairs.
Part V : Indicates the current value of the maximum temperature refrigeration piece allowed , with two Arabic numerals as 06 that means 6A current, this current is the current limit threshold voltage load optimal thermal state, when the refrigeration components temperature causes the current value decreases .
Part VI: indicates the status of the cooling surface of the chip , with no more than two English letters. No metal layer does not represent , single-sided metallization layer T, double-sided metallization layers TT said .
Seven , in practice , 127 series ( i.e., the number of galvanic 127 pairs ) of the cooling sheet is generally applied voltage 12V. For example : TEC1-12706, the maximum number of galvanic voltage i.e. 0.12 * 127 * 0.12 ≈ 15.4V, the normal operating voltage of approximately 78% or 15.4 * 78% of the maximum voltage = 12V, the voltage in the normal operating current of about 78% i.e. 6 * 78% ≈ 4.7A maximum allowable current value , the voltage becomes low , current is also low , the higher the temperature of the cooling plate heat sink surface , the lower the current ; maximum cooling sheet Rev. cold power = galvanic logarithmic * Maximum allowable current value * 0.07 = 127 * 6 * 0.07 ≈ 53W; chip cooling temperature difference in the practical application and utilization of around 60% to 70 % of the theoretical value , refrigeration tablets heat and the cooling capacity of the cooling power of the cooling plate piece , the pieces are heated , then cooling utilization exceeds 100%.
