Notebook computers have evolved from the early 12 inch screen to the current LED backlight screen. Its computing efficiency and 3D processing will not be lost to ordinary desktop computers, and its weight is becoming less and less burdensome. Relatively, the reliability test requirements for the entire notebook computer are becoming more and more stringent, from the early packaging to the current startup, from the traditional high temperature and humidity to the current condensation test, From the temperature and humidity range of the general environment to the desert test as a common condition, these are the parts that need to be considered in the production of notebook computer related components and design. The test conditions of the relevant environmental tests collected at present are sorted out and shared with you, hoping to make a contribution to this industry.
The reliability laboratory is an important and indispensable unit of a company in quality inspection. It needs to carry out relevant reliability tests in both the research and development stage and the delivery inspection stage. The reliability laboratories of Lenovo and Huawei computers use a large number of Hongzhan related environmental test equipment to carry out product quality inspection and lead-free process related tests.
Keyboard tapping test:
Test 1:
GB: 1million times
Key pressure: 0.3~0.8 (n)
Key stroke: 0.3~1.5 (mm)
Test 2: key pressure: 75g (± 10g) test 10 keys, test 14 days, 240 times per minute, total: About 4.83 million times, check once every 1million times
Japanese manufacturers: 2-5 million times
Taiwan manufacturer I: more than 8million times
Taiwan manufacturer II: 10million times
Plug pull test of power switch and connector: this test model looks like the lateral force that each connector can withstand under abnormal usage. General laptop test items: USB, 1394, PS2, RJ45, modem, vga Apply 5kg (50 times), pull up, down, left and right, and plug.
Power switch and connector plugging test: 4000 times (power plugging)
Screen cover opening and closing test: Taiwan manufacturer: 20000 times of opening and closing
Japanese manufacturer I: 85000 opening and closing tests
Japanese manufacturer 2: 30000 times of opening and closing
System standby and recovery switch test: general notebook type: interval 10sec, 1000cycles
Japanese manufacturer: system standby and recovery switch test 2000 times
Common causes of notebook computer failure: ☆ falling during handling or foreign matters falling on the notebook
☆ falling from the table during use
☆ put the notebook in the bag or trolley case
☆ extremely high temperature or low temperature failure, normal use (long-term withstand)
☆ misuse in tourist destinations
☆ incorrect insertion of PCMCIA
☆ place foreign matters on the keyboard
Power off drop test: general notebook type (76 cm)
GB package falling (100 cm)
American and Japanese notebook computers (26 PCs in total from all sides, edges and corners at a height of 90 cm)
Platform system (74cm to be packed)
Terrestrial (90cm to be packed)
Toshiba&benq (100 cm)
Startup and falling test: Japanese system (10 cm startup and falling)
Platform system (74 cm power on and down)
Operating temperature test: notebook component checkpoints (0, 4, 8, 24, 32, 40, 56, 64, 72, 88, 92, 96h)
Laptop motherboard temperature impact: slope 20 ℃ /min, number of cycles 50cycles (no operation during impact)
The technical standards & test conditions for notebook computer procurement by the U.S. military are as follows:
Impact resistance test: throw the computer from all sides, edges and corners for 26 times at a height of 90 cm
Seismic resistance test: 20hz~1000hz, 1000hz~2000hz frequency once an hour X Y Z axis continuous vibration
Temperature test: 72 hour aging roaster at 0 ℃ ~60 ℃
Waterproof test: spray water on the computer in an all-round way for 10 minutes, and the spray amount is 1mm per minute
Dust proof test: spray dust with a concentration of 60000 mg / cubic meter for 2 seconds (10 consecutive times at an interval of 10 minutes for 1 hour)
Comply with mil-std-810 military specification
Waterproof test: U.S. military regulations notebook computer: protection class:ip54 (dust & rain) spray water on the computer for 10 minutes in an all-round way, with a spray amount of 1mm per minute.
Dust proof test: US military regulations notebook computer: spray dust with a concentration of 60000 mg/ cubic meter for 2 seconds (10 consecutive times at an interval of 10 minutes for 1 hour)
