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Power Adapter Temperature Rise Is A Common Problem

Shenzhen GEO Technology Co.,Ltd | Updated: Jul 06, 2017

  Power adapter is a commonly used power conversion equipment, widely equipped with electronic communications equipment, notebook computers, game consoles and other electronic products and information equipment, a wide range of power adapters, AC / AC and AC / DC power converters, charging And other products.

  China's line stage power adapter manufacturers are still small businesses, and even there are some hand-workshop-style underground processing plants, the production of these products, the quality of the situation is worrying in recent years, the State Administration of Inspection and Quarantine and the Ministry of Information Industry Organizational supervision and spot checks, the enterprise pass rate of less than 80%, mainly the following quality problems.

  1. The product mark is not complete or not standardized

  The mark should contain the basic information that guides the user to the proper installation and use of the information, and correctly identifies the product's mark to ensure the safety of the user's personal property.

  2. Power plug is not standardized

  China's domestic single-phase power supply plugs have two levels of non-polar and two with ground two forms, the power plug in use should be able to prevent single-stage insert.

  3. Under normal operating conditions, heat does not meet the requirements

  Power adapter in the normal working conditions of the high temperature rise is a common problem, due to the work of the temperature is too high to cause a fire. The difference between the ambient temperature of the power adapter and the ambient temperature can not exceed 60 ° C. Even if the hot summer ambient temperature reaches 35 ° C, the temperature of the enclosure can not exceed 95 ° C. If the product temperature is too high, we should stop using it in time.

  4. Short-circuit and overload products when there are security problems

  In the output short circuit, capacitor or diode and other parts of the short circuit conditions, the power adapter of the internal loss of a sharp increase, resulting in various parts of the temperature rise.

  Power adapter is the national requirements for 3C certification products, there are quality appeal quality problems, mainly part of the safety standards for the lack of comprehensive and accurate understanding and understanding of the product structure design unreasonable, in order to reduce the finished product jerry, which is part of the product An important reason for failure.