[Types of warm and warm box] Classification of cold and warm boxes of car warm and warm boxes and compressed locomotive refrigerators are better

[Types of warm and warm box] Classification of cold and warm boxes of car warm and warm boxes and compressed locomotive refrigerators are better

Working principle

In addition to the "refrigeration" effect using semiconductor cooling boxes, it can also take into account the heating effect, but its "refrigeration" effect is far less than the refrigerator that uses the principle of compressor.It is only about 20 C than the ambient temperature, so it can only have the effect of cooling.

The refrigerator using the compressor is the real Car refrigerator. In addition to the fast cooling speed, some products can even reach -18 C's freezing capacity.However, its disadvantages are also very obvious. It does not have the heating function, the price is much higher than the warm and warm box, and at the same time, there are many restrictions such as direction (upside down) in the use.

Functional design

In addition to the different working principles, there are some differences in the functional design of these two types of car refrigerators. We also need to brighten our eyes to distinguish when selecting, so as not to affect the actual experience and effect.

Compared with the high price, using a compressed Car refrigerator with a compressed machine, the cooling and cold box of semiconductor refrigeration has absolute advantages in terms of price.At present, the price on the market ranges from tens to hundreds of yuan, and the low price can be accepted by most consumers.

The semiconductor refrigerator is also called an electronic refrigerator. It is different from other refrigerators that use compressors. The principle of semiconductor refrigeration is used. The principle of Parrad Patch is used by a smaller semiconductor chip.The medium -current circuit releases heat at the metal joint of the node when passing through the node, and achieves the ultimate goal of refrigeration and heating through different current flows.

When this semiconductor refrigerator is working, there is no vibration of any other mechanical components except the heat dissipation fan, and low noise, long life, and non -wear are also the biggest feature.However, its disadvantages are also very fatal in the eyes of many people. Compared with good heating ability, its refrigeration effect is poor and does not have the refrigerator of the compressor refrigerator. Generally, the ideal refrigeration temperature is only about 20 C.

With the continuous improvement of technology, some manufacturers upgrade the refrigeration capacity of traditional cold and warm boxes by increasing the area of refrigeration film, but it is still affected by the great ambient temperature. In addition to the refrigeration speed, it is better than using a single refrigeration system.Fast, there is no essential improvement in refrigeration ability.

Therefore, this kind of warm and warm box is more suitable for use in ordinary household cars. After all, compared with the more than the cabin of the cab, the space of the car is much smaller, and the air conditioning refrigeration effect is more obvious, making the working environment of the warm and warm box lower."Refrigeration effect" is more obvious.

In addition, we also need to pay attention when buying. At present, some vertical warm and warm box that supports the dual -use of the car households is used as a flat door design, and except for magnets on the door, there is no door lock.The sealing effect is easy to condense the moisture in the external air, so that the embarrassing situation of stagnant water around the refrigerator will seriously affect the daily use experience for a large vibration truck cab.Therefore, we should try to buy those who open the door and the bottom with a fully enclosed crooked warm and warm box.

The Car refrigerator that uses a compressor method is the same as ordinary household refrigerators in principle. The process of continuous circulation such as compression, condensation, expansion, and evaporation of internal refrigerant is used to reduce the internal temperature inside the refrigerator.It is just out of portability, and its volume will be even more compact.Because its core components are compressors, it is much more expensive than semiconductor refrigerators.

On the other hand, compared to the real and durable warm and warm box, the compressor refrigerator is relatively "delicate". Although some products claim that its compressor can work normally under 45 , we also need to pay attention to daily use in daily use.Avoid accidents such as bumps and flipping.

Having said so much, many people may ask why some cold and warm box claims to reach the refrigeration capacity of below zero X , but it is far from the actual use?Because some people ignore a factor, that is the ambient temperature.Especially for the cold and warm box, the cooling results of the ambient temperature at 50 C and 25 C are very different. If the refrigeration capacity of 20 C, the final refrigeration result of the two will be as much as 25 C.

Comparison

The price of the "warm and warm box" is basically below 1,000 yuan, but the cooling effect can only reach the point of cooling, suitable for some areas with low requirements and low environmental temperature.Lost meaning;

Compressor vehicles carry refrigerator: The price is basically above 2,000 yuan, but the cooling effect is good, it can freeze, there is no problem with ice cream, ice cream at all, and even drink iced (iced) drinksIn high areas, even if the ambient temperature exceeds 37-38 degrees, or even more than 40 degrees, the temperature can still reach -10 degrees when it is filled with things.

Pay attention to the use of car refrigerators

Select the right capacity according to actual needs

Do not cover the body's heat dissipation holes to avoid affecting its heat dissipation ability

Do not store magnetic objects in the warm and warm box, so as not to affect the effect of refrigeration chip

Need to clean the inside of the refrigerator regularly to avoid bacterial breeding

When switching from refrigeration to heating, you need to wait for the internal recovery of the ambient temperature

Try to choose products with low voltage protection (battery protection) function when buying

If 24V power supply is not supported, you need to buy antihypertensive equipment (24V to 12V)

It is best to pull out the refrigerator power supply when stopping

When using a compressor refrigerator, fix it in the car, avoid inverted and obliquely.

Do not put carbonated drinks and beer for a long time in the frozen area of the compressor refrigerator, which is dangerous to explosion.