When using a laptop, we may notice that during use, especially when charging and using simultaneously in hot summer weather, the AU plug 12W AC DC adapter generates heat. This is actually a normal phenomenon because it consumes energy during the voltage conversion process, and some of it is converted into heat energy and released. It is well known that energy conversion always involves losses. The current European and American six-level energy efficiency standards for AU plug 12W AC DC adapters typically range from 70% to 90%. For example, the 12V 10A AU plug 12W AC DC adapter, the six-level energy efficiency standard requires a loss of less than or equal to 88%. Currently, it is difficult to find a better conversion method for the AU plug 12W AC DC adapter. During voltage conversion, some energy is lost, with most of it being dissipated in the form of heat.
Of course, it is not impossible that some inferior AU plug 12W AC DC adapters generate heat due to design flaws, using inferior components, or not designing the circuit according to the safety standard. Because these products do not meet the requirements of the safety standard in terms of design temperature rise or other parameters, they have no comparability with genuine power supplies. Therefore, it is recommended that consumers choose genuine power supply products. Genuine AU plug 12W AC DC adapters, we first look at the label, which will have an energy efficiency symbol, some will have a certificate number. The manufacturer's information, or factory abbreviation or full name, or LOGO. In China, when they are circulating and used in the market, they require 3C certification. Therefore, during the purchasing process, we should pay attention to observing these information to avoid buying inferior knockoff products.
Apart from not using inferior AU plug 12W AC DC adapters, we should also try to use the original AU plug 12W AC DC adapter. Even if it needs to be replaced, we should choose an AU plug 12W AC DC adapter with the corresponding output voltage as the one used for the product. For example, if the AU plug 12W AC DC adapter of our router is broken, and it previously used a 9V 1A AU plug 12W AC DC adapter, then we can only replace it with a 9V AU plug 12W AC DC adapter. Otherwise, the router will not be usable and may even be damaged. This is about the voltage. We also need to pay special attention to the output current of the matching AU plug 12W AC DC adapter. We must not make it smaller than the original output current. Otherwise, the AU plug 12W AC DC adapter will be overloaded and may cause the power supply to overheat, or no output protection, or even damage.
After noting the above points, we need to consider the environmental factors. As the weather becomes increasingly hot, even the original AU plug 12W AC DC adapter will have a higher shell temperature compared to when the temperature was lower. Therefore, during use, the AU plug 12W AC DC adapter should not be placed in direct sunlight or in a hot and enclosed environment. It should be placed in a cool and ventilated area. Otherwise, not only will the heat of the AU plug 12W AC DC adapter not be dissipated, but it will also absorb some heat. In hot summer days, we can place the AU plug 12W AC DC adapter sideways to increase the contact area between the adapter and the air, thereby allowing the heat of the adapter to be dissipated more effectively. To achieve better heat dissipation, we can also place a narrow plastic or metal block between the AU plug 12W AC DC adapter and the desktop to increase the air convection speed around the adapter and accelerate the dissipation of the adapter's heat. Do not place any items on the AU plug 12W AC DC adapter, which would prevent it from dissipating heat. If possible, add a fan for cooling next to the AU plug 12W AC DC adapter.
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