Power Adapter Manufacturers Military Quality Charger

Power adapter manufacturers: what problems often exist in poor quality power adapters?

In life because of the use of poor quality power adapters and fire events often occur, most of these poor quality power supply is no safety certification of the product, in the design and manufacture of the design, there are many problems in itself, so in the daily use of the more prone to failure. So what problems do they often have?

First, the temperature test failed

1. Due to the small internal space of the product, the layout of parts and components is not reasonably designed;

2. The temperature limit itself small components touch or next to the components of the heat (eg: output line touches the heat sink or heat a lot of electrolytic capacitors, etc.);

3. Use of components with low temperature resistance;

4. using wires with too small a cross-sectional area;

5. the enterprise in order to save costs, private changes in the structure of the product has been certified, did not use materials that meet the requirements.

Power adapter manufacturers

Second, resistance to abnormal heat failure

Qualified power adapter resistance to abnormal heat requirements should meet the GB 4943.1-2011 Article 4.5.5, connected to the installation of thermoplastic materials with hazardous voltage components should withstand GB/T 5169.21 ball pressure test requirements, at a temperature of 125 ℃, the indentation of the thermoplastic material diameter of not more than 2mm.

The inferior power supply will often appear below these problems.

1. The thermoplastic material of the electric parts has poor resistance to high temperature and may be softened and deformed in the course of use;

2. Enterprises in order to save costs using poor quality materials, resulting in fixed charged parts material heat deformation.

At the same time poor quality power supply often also has these hidden dangers.

1. Normal working conditions of parts and materials under high temperature may lead to scorching, insulation level drop, component performance is reduced, will likely to trigger the risk of electric shock;

2. Normal working conditions with dangerous voltage components and accessible conductive parts of the electrical gap and creepage distance distance is reduced to cause excessive contact current, which may lead to electric shock hazards;

3. insulating materials in a high-temperature environment, may occur in the insulation performance decline, or even melting, will likely to trigger the risk of electric shock, if the heat of the hazards may lead to serious fire hazards; when the internal circuit short-circuit caused by the components of the explosion, the insulating material may be dissolved to cause the fire.

In order to protect the safety of users of electricity, Eahunt power adapter manufacturers are committed to revolutionizing the industry trend, only to do reliable quality certified power supply, Eahunt power supply products have all reached the six energy-efficiency standards, and has a UL, CE, CB, FCC, GS, CCC, PSE, SAA, KC, BSMI a variety of international certifications, certified power supply, military quality, choose Eahunt.