Why do power adapters get hot during use and what to do about it?

When we were in the use of laptops, may be found in use process, especially on a hot summer day charge while using, the power adapter fever, actually this is a normal phenomenon, because it is in the process of converting voltage consumes energy, part is converted into heat energy. As is known to all will want to loss of energy conversion, the existing The six levels of energy efficiency standard power adapter conversion efficiency generally between 70% and 90%. 12 v10a power adapter, for example, six levels of energy efficiency standards efficiency requirements for less than or equal to 88%, the power adapter conversion efficiency is hard to find a better way of transformation, the power adapter in to convert the voltage, the part of the energy loss, which in addition to a small part in the form of wave loss, much took the form of heat.

Of course not rule out some inferior power adapter, because the design defects lead to hot, or to use inferior components, or no to design the circuit according to the safety standard, because these products in the design of temperature rise or other parameters are not reached safety standards, and the power of the authentic no comparability. So advised consumers to choose a regular electricity Source products. Normal power adapter, we first see the name plate, it will have safety symbols, some marked with the certificate number. The manufacturer information, abbreviation or full name. Or factory, or LOGO, we use in domestic circulation on the market will require 3 c certification, so we should pay attention to look at the information in the purchase process, avoid buy inferior shanzhai products.

Besides don't use inferior power adapter, we also pay attention to use the original power adapter as far as possible, even if to replace, also should choose and use the product corresponding to the output voltage of power adapter, assume our router's power adapter is broken, it is used before 9 v1a power adapter, so we can only change 9 v power adapter, otherwise the router will not be able to use, and even burn out, this is about the voltage, to match the output current of the power adapter, we also pay special attention to, must be able to less than the output current of the original, use, or power adapter will overload overload use words will out The current Power Supply is hot, or no output protection, or even damaged.

Pay attention to the above points, we need to consider the environment factor, the hot weather, even compared to the original power adapter temperature is low, the shell temperature will be higher than. So the power adapter is in use process, can't be placed in direct sunlight, or hot closed environment, should be placed in a cool and ventilated place. Otherwise, not only the power adapter Part of heat do not go out, but also absorb heat. In the hot summer, we can put the power adapter side, in order to increase the power adapter adapter and air contact area, thus let the adapter as better heat out. In order to obtain better heat dissipation effect, we can also between the power adapter and the desktop mat into a narrow plastic or metal blocks, in order to increase the adapter ambient air convection speed, speed up the adapter as the heat. Do not place items on the power adapter, heat dissipation. If conditional word beside the power adapter and a cooling fan.

Best regards,

Shirley Liang