A, radiator material determines success or failure
In the last two years, the types of notebook cooler has become more and more, but along with the emergence of, is also a mixed and confusing situation. So when buying, the most important thing to focus on is the material of the notebook cooler. At present, miscellaneous products usually use plastic materials, not only poor thermal conductivity, and the shape of the design is not very reasonable. Comparatively speaking, brand-name products will be used in higher thermal conductivity of aluminum alloy, its cooling effect is satisfactory. In addition, you should also pay attention to whether the edge of the radiator is smooth, whether the surface of the radiator using a non-slip design. Otherwise, if the hand scratches, or notebook from the radiator "speed slip" down, it is not worth it.
Second, the radiator fan is really annoying
The current notebook cooler usually use a dual-fan design or three-fan design, the cooling effect is mainly generated by the fan airflow is determined, rather than the number of fans. So when buying a laptop cooler, you should not blindly fetishize the triple-fan design, sometimes it is still more excellent to have a dual-fan design. The ideal solution is to take your laptop and experience it for yourself, so that you can buy the most suitable product. It is also important to note that the reason some dual-fan designs have a stronger cooling effect is that it is only achieved by increasing the fan speed. With this comes a noticeable noise. So when shopping for a notebook, users must pay special attention to the noise of the radiator. Only if there is no noticeable noise in a quiet environment is it suitable for notebook users to buy!
Three, the radiator external power supply is more flexible
Most laptop radiators will use USB power supply, this design is still very convenient. However, if you use the USB power supply when using the battery there is a risk that the laptop power supply is insufficient to cause the laptop to shorten the duration, or take up valuable USB ports, can not connect to other devices. Therefore, theoretically speaking, it is best to buy a laptop cooler that also has an external power supply. In this way, when there is an external power supply or do not need to connect multiple USB devices, the use of USB power supply, while in the notebook for heavy workload or need to connect multiple USB devices, the use of external power supply. Not only is it more flexible to use, but it also doesn't affect the use of other USB devices.
Four, adjustable speed radiator more value
Fan noise is inevitable, but can be reduced by reducing the speed to reduce the noise. In the weather is not too hot days, with the speed function of the notebook cooler is more favorable. Currently, the fan of the laptop cooler usually has a high, medium and low gear three-level speed regulation. Just like an electric fan, it adjusts with the temperature. In the purchase of laptop cooler, try to buy products with speed control function. In addition, with the software control and automatic monitoring of the laptop cooler, you can also consider more.
Fifth, choose the vent radiator to be careful
In addition to the base radiator, the market also appeared on the PC card type radiator. This radiator can be inserted directly into the notebook PC card slot, the use of fans rotating outward wind, in order to achieve the purpose of rapid cooling notebook. However, this type of cooler is not suitable for all notebooks due to the different internal designs. If used forcefully, it can disrupt the internal air convection and cause a constant high fever inside the laptop, so this cooler is only available in miscellaneous brands. In addition, there is also a shape similar to it exhaust vent radiator, this radiator is also outward air extraction, but it is installed in the notebook's exhaust vent, so the direction of air extraction can be consistent with the direction of air flow inside the notebook, so it can be considered.
Six, "height" of the book can also improve the cooling
The reason why the notebook needs a radiator, mainly because of the bottom of the air circulation caused by the poor. So there is a notebook foot pad on the market, the same can be considered a special radiator. After the use of feet, the notebook will realize the "height", the distance from the desktop is also much larger. The bottom of the air easier to circulate, the cooling problem has been solved.
Seven, the principle of the notebook cooler
1, the material of the cooling base
The main products in the current market use two kinds of materials: metal or plastic. Metal thermal conductivity is good, but now the bottom of any notebook has a non-slip rubber pad, and metal cooling base can not be tightly together, so the thermal conductivity of the metal can not be fully played out. Of course, the metal base can still better absorb and spread out the heat emitted from the notebook. In addition, metal is generally heavier, and because of the manufacturing process requires a high degree of craftsmanship, once the workmanship is not fine enough, it is very easy to become a weapon to hurt people. Plastic is generally lighter and harder, and the strength of many engineering plastics even exceeds that of metal. For cost and lightweight considerations, lighter weight, heat small notebook can buy a better designed plastic cooling base. But if the weight of the notebook is larger, higher heat or recommended to buy metal material, good workmanship of the cooling base.
2, the principle of cooling base
Heat dissipation, in fact, is a heat transfer process - conduction, convection, radiation and other ways. Usually in the desktop computer is mainly air-cooled technology, which includes cpu, graphics card, power supply and chassis cooling fan, etc., in the laptop computer, air-cooled is still the main cooling method, the vast majority of the cooling method is: fan + heat pipe + heat sink combination. At present, many laptop computers use aluminum-magnesium alloy shell, the heat dissipation also plays a role. As we all know, at the bottom of the laptop computer generally have cooling vents, or inhaled or blown out of the laptop's heat dissipation are very important. Laptops are also designed with heat dissipation in mind, often with padded feet to elevate the body, but it's a bit of a stretch when the temperature gets too high.
There are two main principles of heat dissipation in the thermal base of a notebook:
1, purely through the physics of the principle of thermal conductivity to realize the function of heat dissipation. Placing the cooling base made of plastic or metal on the bottom of the laptop, elevating the laptop to promote air circulation and heat radiation can achieve the cooling effect.
2, in the cooling base and then install a number of cooling fans to improve cooling performance. This air-cooled cooling method includes suction and blowing two kinds of air. The difference between the two forms of air supply lies in the different forms of airflow, blowing air produced by turbulence, belonging to the active cooling, wind pressure, but easy to resistance loss, for example: the daily summer with the electric fan; suction air produced by laminar flow, belonging to the passive cooling, wind pressure, but the airflow is stable, such as chassis fan. Theoretically, in an open environment, turbulent heat transfer efficiency than laminar flow, but the bottom of the notebook and the cooling base actually form a closed space, so the general suction cooling method is more in line with the design specifications of the wind flow. Most of the cooling docks on the market have built-in suction fans, which are described below.
3, the structure of the cooling base
Fan-type cooling base construction is not complicated, generally by the metal or plastic shell plus the built-in 2 - 4 fans, the fan power supply program through the laptop usb interface power supply as well as external power supply of two kinds of products, some products also have to extend the function of multiple usb port. Most of the laptop cooling base fan are used suction type design, because this can minimize the impact of air disturbance, improve cooling efficiency.
The number and layout of the cooling base fan is also very important, now the rear of the notebook is often the battery, and some of the main heating components such as: cpu and hard disk location is relatively close to the middle, especially the hard disk, most of the design of the hand under the bracket, and many of these parts of the cooling base is often not designed for the fan. So before buying a cooling base, it is best to first figure out the location of several major components of their own book base, the simplest way is to let the book on for an hour directly after the hand touch the bottom and desktop, to determine the most hot a few positions on the good. Then, try to buy a fan layout closer to the location of the heat of the base.
Try to buy a cooling base with an independent power switch, check whether there is a non-slip or fixed structure can effectively avoid accidents, the size and color of the problem based on personal preference.
4, the performance of the cooling base
Performance determination method: under the same environment, do not use the cooling base, respectively, recorded five minutes of power on and power on one hour after the main temperature parameters of the system; and then use the cooling base, also recorded five minutes of power on and power on one hour after the main temperature parameters of the system; compare these four temperature values, we can probably determine the cooling performance of the cooling base
What you also need to pay special attention to is the noise and vibration of the cooling dock, and the number and quality of fans is the deciding factor. Fan more certainly increase the cooling effect, but the corresponding power consumption and noise vibration also increased, so generally 2 to 3 is appropriate. So the purchase of the base test when you need to pay attention to determine whether the noise is acceptable, whether there will be vibration affects the computer hard disk.
5, the use of thermal base notes
Notebook cooling base is very simple to use, first of all, the notebook cooling base flat, and then connected to the power supply, so that the cooling base fan holes facing up to open the front power switch, and finally, the notebook will be placed flat on the top of the cooling base can be. No matter what the environment, pay attention to leave all the cooling fan outlet, to ensure that the air can carry the heat quickly spread out.
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