What Are Common Quality Problems Of Power Adapter?
The power adapter is a common power conversion device,A wide usage of electronic communications equipment, notebook computers, game consoles and other electronic products and information equipment,there is A wide variety of power adapter,such as AC/AC and AC/DC power converter,charger etc.
At present, the production of Switching power adapter enterprises in China is still dominated by small enterprises，there are some underground processing workshop, they even don’t have any quality control. In recent years,State Administration of inspection and quarantine and Ministry of information industry found in the spot check,the qualified rate of enterprise is less than 80%, and the following quality problems exist:
1.The marking of the product is incomplete or nonstandard;
The tag should contain important information that guides the user's proper installation and use.
2.The plug of power adapter is not standard;
Our country stipulates that the household single-phase power plug has two forms: two pole free pole and two stage belt grounding, and the power plug should prevent single stage insertion in use.
3.Temperature under normal working conditions does not meet requirements:
The high temperature rise of power adapter under normal working conditions is a common problem, but if the temperature is too high,it might cause fire.The difference between the temperature of the power adapter housing and the ambient temperature shall not exceed 60 degrees centigrade,Even in the hot summer, the environmental temperature reached 35 degrees, the shell temperature can not exceed 95 degrees, and if the product temperature rise is too high, we should promptly stop using.
4.When the short circuit and overload, the AC DC Power Adapter has the hidden danger of safety performance;
Under the condition of short circuit of output short circuit and capacitor or diode, the internal loss of power adapter increases rapidly, which leads to the increase of temperature in every part.
The power adapter is the state of the CCC certification of products, the existence of these quality problems, mainly because some enterprises lack of comprehensive knowledge and understanding of safety standards,also unreasonable design of the structure, in order to reduce the finished cut corners, it is an important reason causing some unqualified products.
All our Switching Adapter is fully CCC,UL/CUL,PSE,KC,FCC,CE,SAA etc. Certification, If you have any inquiries, please contact : firstname.lastname@example.org. Thanks a lot.