During the electricity defrosting of air cooler

some issues would arise

such as that temperature field would be damaged

energy would be lost

the refrigeration load would be increased

so a set of electric isolation device was designed. At the typical operating condition that cold storage temperature is -18 ℃

electric defrosting of air cooler was studied after using the partition device. Then the questions that how the partition board to influence the cold storage temperature

the temperature field around the air-cooler and the consumption of electric heating defrosting was studied through comparing the experimental data whether the defrosting partition device was used or not. The results indicate that after using the partition device

the variation of cold storage temperature is reduced

the maximum change is decreased by 5 ℃; ambient temperature uniformity around the air cooler is improved

the maximum change is increased by 10 ℃; defrosting energy consumption is reduced by 1/3. So the energy utilization rate for electricity defrosting was improved when partition board was applied.