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C Society Mobile Phone Test Report-Test Conditions and Methods
• Ambient temperature RT: 25±1℃;
• Video project test: charging status, initial battery level of the phone is 15%, maximum volume, moderate brightness,
• The mobile phone is placed flat in a plastic cup, playing the same high-definition video source on Youku, and the test time is 60min;
• Game project test: charging state, initial battery level of the phone is 45%, maximum volume, maximum brightness
• Place the mobile phone vertically on the plastic cup with both hands;
• Screen light adaptive shutdown
• The phone connects to the network via wifi
• Use Fluke Ti100 infrared imager to capture the temperature rise on the front and back of the phone, take infrared images every 10 minutes and record the highest temperature Tmax of the test area;
Program | the cover of a phone | Motherboard chip shield | Middle frame and LCM |
Customer's original plan | Panasonic artificial graphite sheet (47μm, including glue) Thermal conductivity in XY direction: 1400w/m.k Z direction: 8.3w/m.k | Panasonic artificial graphite sheet (47μm, including glue) XY direction thermal conductivity 1400w/m.k Z direction: 8.3w/m.k | Panasonic artificial graphite sheet (47μm, including glue) XY direction heat conduction system 1400w/m.k Z direction: 8.3w/m.k |
EBT plan 1 | no | EBT8207B (70μm) XY direction thermal conductivity 1700w/m.k Z direction: 25w/m.k | EBT8508 (80μm) Thermal conductivity in XY direction 400w/m.k Z direction: 18w/m.k |
Comparison of test data between original machine scheme and EBT scheme
video | 00min | 10min | 20min | 30min | 40min | 50min | 60min | max | screen | SOC surface | back cover | |
original machine | positive | 28 | 37.9 | 39.8 | 40.5 | 40.2 | 40.2 | 40.2 | 40.5 | 50u graphite sheet | 50u graphite sheet | 50u graphite sheet |
negative | 28.3 | 39.3 | 41.4 | 42.4 | 42 | 42.6 | 41.8 | 42.6 | ||||
EBT program | positive | 27.9 | 37.7 | 39 | 39.3 | 39.9 | 40.4 | 40.5 | 40.5 | EBT8508 | EBT8207B | N/A |
negative | 27.8 | 39.4 | 41.1 | 41 | 41.2 | 42.2 | 42.4 | 42.4 | ||||
game | 0min | 5min | 15min | 30min | max值 | screen | SOC surface | back cover | |
original machine | positive | 27.9 | 38.6 | 42.1 | 42.7 | 42.7 | 50u graphite sheet | 50u graphite sheet | 50u graphite sheet |
negative | 28.1 | 38.9 | 42.1 | 42.8 | 42.8 | ||||
EBT program | positive | 27.2 | 37.9 | 41.5 | 41.6 | 41.6 | EBT8508 | EBT8207B | N/A |
negative | 27.5 | 38.5 | 41.6 | 41.6 | 41.6 | ||||
Comparison of the original machine solution of the video project and the EBT cooling solution
游戏项目原机方案与EBT散热方案对比
