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What should I do if the power adapter is hot? what is the reason?

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What should I do if the power adapter is hot? what is the reason?

Classification:
Company News
Release time:
2018/10/23 20:44
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[Abstract]:
Whenmanyfriendsbuyanotebookornotebookpowersupply,theymayencounteralongtimeafterthepoweristurnedon,andtheheatishot.Eveniftheyaretoohottotakeitbyhand,isthereaqualityproblemwiththepowersupply?Isthisnorma

When many friends buy a notebook or notebook power supply, they may encounter a long time after the power is turned on, and the heat is hot. Even if they are too hot to take it by hand, is there a quality problem with the power supply? Is this normal? Phenomenon? How to solve this problem? This article power adapter manufacturers will answer your questions.

 

First, why is the power adapter hot?

 

What temperature range is within the normal range? The conversion efficiency of the power adapter can only reach about 75%-85%. The answer is here. The conversion efficiency of the power adapter is high enough, and it is still difficult to find a better conversion method. When the power adapter is performing voltage conversion, a part of the energy is lost. Except for a small part of the loss in the form of waves, most of it is emitted in a thermal manner. The greater the power of the power adapter, the more energy is lost, and the heat generated by the power supply is greater. This is why the desktop power supply needs a fan to dissipate heat. Let us count, a 100W power adapter, how much energy loss in use!

 

Therefore, when designing and manufacturing, we must choose high temperature resistant components. Of course, the temperature of the power adapter must be controlled within the allowable range of the application environment.

 

Second, the notebook power adapter is hot when used:

 

It is normal for the notebook power adapter to heat up during use. It has been working. To convert the output power, it will consume energy. Some of it will become heat. It also depends on whether the battery is installed or the battery is normal. Wait. The notebook power adapter is actually a high-precision, high-efficiency switch-type regulated power supply. Its function is to convert 220V AC mains into low-voltage DC, which provides stable power for the normal operation of the notebook. It is even called a laptop. The "source of power".

 

As long as the temperature of the power adapter is within the design range, that is, the power adapter temperature is within the normal range, it is generally not dangerous!

 

Third, how to solve the problem of overheating of the power supply?

 

We should first buy a genuine power supply. First, look at the nameplate. The information given on the nameplate is generally very complete. There will be product certification information and manufacturer information. Generally, the product adapters and professionally produced power adapters are compared. reliable. The second point is the brand, the brand is also very important, this is the same as the reason we buy a mobile phone like to buy a brand machine, although the choice of the brand's power adapter, his power adapter price may be higher. The third point is the certification I mentioned before. The certified products will be allowed to be used in the market, such as domestic CCC certification.

 

Fourth, how to solve the problem of overheating of the power supply?

 

1. Create a good heat dissipation environment and place the power adapter in a place that is not exposed to sunlight and is ventilated. Remember that you can't use it for too long at high temperatures. If you have to use it for a long time, be sure to pay attention to heat dissipation. You can put the fan on the side to help dissipate heat.

 

2. In the high temperature environment, the adapter is placed on the side to reduce the contact with the floor area, so that the adapter can dissipate the heat better and have the effect of dissipating heat.

 

3. A narrow plastic block or metal block can be placed between the adapter and the desktop to speed up the heat dissipation of the adapter.

 

4. The power adapter heat is generally caused by battery charging and computer consumption. We can set it up in a book with battery management software.

 

5. Always wipe the adapter with a dry rag or paper towel to prevent dust from entering the adapter and reduce the heat dissipation of the adapter.

 

Fifth, choose a regular power product

 

We should first buy a genuine power supply. First, look at the nameplate. The information given on the nameplate is generally very complete. There will be product certification information and manufacturer information. Generally, the product adapters and professionally produced power adapters are compared. reliable. The second point is the brand, the brand is also very important, this is the same as the reason we buy a mobile phone like to buy a brand machine, although the choice of the brand's power adapter, his power adapter price may be higher. The third point is the certification I mentioned before. The certified products will be allowed to be used in the market, such as domestic CCC certification.

 

Sixth, the correct use of the power adapter

 

1. Place the adapter in a location that is not exposed to sunlight and is ventilated. Try not to use it for long periods of time.

 

2. The heat sink can be placed next to the adapter, such as a fan.

 

3. The adapter can be placed on the side to reduce the contact area with the ground, which is also effective in controlling the heating of the adapter.

 

4. The plastic block or other items can be placed under the adapter to make it overhead, which can speed up the heat dissipation of the adapter.

 

   Pay attention to the above points, we need to consider the environmental factor, the weather is getting hot, even if the original power adapter is lower than the temperature, the shell temperature will be higher. So the power adapter can not be used during use. Place it in a cool, well-ventilated place in direct sunlight or in a hot, closed environment.

 

Otherwise, not only the heat of the power adapter will not be dissipated, but also a part of the heat. In the hot summer, we can put the power adapter on the side to increase the contact area of ​​the power adapter adapter with the air, so that the heat of the adapter is better. .

 

For better heat dissipation, we can also insert a narrow plastic block or metal block between the power adapter and the desktop to increase the air convection speed around the adapter and speed up the heat dissipation of the adapter. Never on the power adapter. Place the item, causing it to dissipate heat. If possible, add a fan to the side of the power adapter to dissipate heat.

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