Hundred yuan Xiaoice box so choose, the housekeeper aunt can not pick out the problem! 丨Huangjia Laboratory

Phoenix Home Review Phoenix Network Technology Phoenix News Client Produced

There will always be missed scenery, but don't miss the hardcore review of the Huangjia review ~ remember to click "Watching", so that the new article will appear in your subscription list for the first time. Love you~

Phoenix network under the evaluation of the public number

Professional consumer goods review, recommended to follow Oh!

On a hot summer day, when you are in the office, dormitory, or when you are traveling, it is absolutely a real happiness to drink a cold drink. For these needs, we have specially prepared this issue of Xiaoice box reviews.

Poke this to watch the video

Search for [Xiaoice box], [dormitory refrigerator], [car refrigerator] on the e-commerce platform, the most common is this category, its scientific name is [semiconductor cooling and warming box]. The principle is very simple, to a special semiconductor power on, its two ends will produce temperature difference, rely on one end of the refrigerator to absorb heat, one end outside the refrigerator to exothermic, the released heat with the fan blown away, it produces a refrigeration effect.

The biggest advantage of this Xiaoice box is cheap, small size, we chose 7 8L Xiaoice boxes on the e-commerce platform, the price is basically around 100-200, only delicious and Pepsi is more expensive. In addition, we also purchased the two additional 20L dual refrigeration Xiaoice boxes as a control group to see how different the Xiaoice boxes are under different specifications.

There are many complaints on the Internet about Xiaoice boxes, such as refrigeration crotch, noise, and some people are worried that it is a kind of goods, lack of practicality, and more people are worried about whether the dormitory power supply or the car power supply will not move it, these are the questions to be answered in this issue.

Refrigeration testing

The first is the most critical refrigeration efficiency, we tried to find a test environment similar to the general university dormitory, slender apartment, one-sided ventilation, low floor, high floor.

The seven 8L Xiaoice boxes tested were placed on the ground, and the rear end was spaced 20 cm apart from the wall corner, leaving enough space for the exhaust port. We use a temperature inspector, which places the sensor in the middle of the box and records the temperature every five minutes.

The test starts at 20:00 every day and ends at 16:00 the next day, with a total length of 20 hours, during which the power metering socket records the accumulated power consumption of the Xiaoice boxes.

After the test began 1.5 hours, all refrigerators reached maximum cooling capacity and did not change significantly after that. Their cooling capacity is divided into four grades:

The first gear of cocoa, Meiling, the temperature in the refrigerator is 17.5 ° C lower than the room temperature; the temperature difference between the inside and outside of the Oaks is 1 ° C less than them, belonging to the second gear; the third gear is Pepsi, the refrigeration capacity is about 14 ° C; the refrigeration effect of Xinfei, Xianke (SAST), OGE is more general, all 11 ° C more, not more than 12 ° C, tied for the fourth gear.

But this is only the case of empty box testing, if you really use them to freeze drinks, will there be a difference in refrigeration performance?

So then we fill most of the space in these refrigerators with drinks: this 8L capacity Xiaoice box, basically 1 bottle plus 4 cans of drink is almost full, this load may be smaller than many friends expect.

In this round of testing, we arranged 4 temperature sensors in each refrigerator, two of which recorded the air temperature in the box and the other two probes were inserted into two cans close to the inner wall of the refrigerator to record the temperature of the liquid. The test still starts at 20:00 every day and ends at 16:00 the next day, with a total duration of 20 hours.

The results are really not the same as the empty box test.

Whether it is the temperature inside the box or the temperature of the liquid, there is no longer an empty box test that probes to the end for an hour and a half, and then maintains stability. The refrigerator has cooled down, and the downward trend of the temperature curve can always be seen, although after 14 hours, this trend has basically become very weak.

There have also been some changes in the position of the refrigerator's refrigeration capacity.

First look at the temperature in the box, Oaks performance has improved, and Coca-Taute and Meiling have become the same gear; Xinfei has also caught up with Pepsi and ranked second; the remaining Xianke and OGE are only about 9 °C lower than the room temperature by the end of the test.

However, the result of the liquid temperature is not the same as the temperature in the box. Coca-Cola, Meiling, Oaks is still the first gear, the performance is closer; the biggest difference is in the second gear, to the beverage refrigeration, catching up with Pepsi is The First Branch, probably about 1 °C with Pepsi; the temperature in the box ranks in the second gear of the new fly, frozen drink is the worst, worse than OGE.

Excluding xinfei and Xianke, the temperature and beverage temperature in the other 5 refrigerators are basically synchronous changes, but the cooling speed of the liquid is faster than that of air, and the final temperature is lower than that of air.

In fact, the temperature measured in all refrigerators is higher than when the empty box is tested, and the temperature of the drink is lower than the temperature of the empty box, and the Coca-Cola is even lower than 0 ° C.

However, considering that this round of testing took three days to complete, and the room temperature difference of about 1 ° C each day, perhaps affected by room temperature, Meiling and Oaks's Coke failed to freeze below 0 ° C? So we tested the top three for another round to see if they could freeze out of the ice at the current room temperature of 25 ° C!

As a result, because the room temperature increased, none of them was able to freeze cola below 0 °C this time. But the three refrigerators are also divided into highs and lows: Coca-Cola still has a cooling capacity of 21.5 ° C, freezing the liquid temperature of Coke to 3 ° C; the cooling ability of Meiling and Oakes is obviously affected by the higher room temperature, and their Coke liquid temperature stays at about 6 ° C.

The above is the refrigeration of the 8L Xiaoice box, what about the 20L?

The results of the two models we bought alone are a bit confusing: the delicious 20L refrigeration is worse than the 8L, and the 20L of Pepsi Gradually exceeds its own 8L. However, just when we were expecting it to exceed 20L delicious, the monitoring temperature suddenly rebounded; after retesting, it was confirmed that it was due to Pepsi broken!

Power consumption test

Can the power supply in student dormitories support Xiaoice box work? The e-commerce page is very clear: the cooling power is about 40W, and the dormitory is available. Note that the 40W here is just a case where the refrigerator is empty, what happens when the refrigerator is full?

In parallel with the refrigeration test, we also tested the real-time power of the Xiaoice box full of beverages and the cumulative power consumption of 20 hours of operation using power metering sockets.

The test results show that in the case of full filling, the refrigeration power of the 8L Xiaoice box is generally 50 ~ 55W, and the continuous operation consumes about 1.1 kWh of electricity for 20 hours, and there is no problem in using it in the dormitory.

Among them, the best Xiaoice box for energy consumption control is Xianke, and the refrigeration power is basically less than half of other products; the second place in power saving is the delicious 8L refrigerator with excellent refrigeration effect. But the same 20L refrigerator consumes "one-size-fits-all"; even more outrageous is PepsiCo, whose 8L refrigerator is not energy efficient, and the 20L refrigerator is amazingly power-saving, lower than most 8L refrigerators, including PepsiCo's own.

Noise test

Compared to the power consumption of the Xiaoice box, everyone may be more concerned about noise.

In a room where the noise floor is stabilized at 48 to 50 decibels, we test the noise at the rear fan of each refrigerator separately, read the 20-second data and record the average.

Test result: The noise champions in the selection are 8L Coca-Ta and Oaks. Mei Ling, slightly better. The quietest are the two models of Xinfei and Xianke. 8L Pepsi came in third.

Buying advice

After some tossing, we summarized the three major indicators to evaluate the performance and experience of the Xiaoice box: cooling effect, power consumption, and noise. And give purchase recommendations.

However, for a product like Xiaoice box, which one you buy should depend on your usage scenario:

Want to freeze drinks in the dormitory student party, Meiling is the best choice for cost performance, moderate price, strong refrigeration performance, good value, is a little noisy. If you or your roommate are sensitive to noise, you can only take a back seat and choose First Or Pepsi.

Going out to use the new middle class in the car, that delicious refrigerator is worth recommending, the appearance is stylish, and the refrigeration performance is always god. If there is enough space for placement, you can also upgrade to 20L, the performance loss is limited, but it can be loaded with many other foods besides drinks, and it is a good companion for camping.

As for the least recommended OGE, it is really a comprehensive and balanced player, not only the worst refrigeration performance, the noise is also large, the key is that the price is not cheap enough.

The above is the whole content of this issue of the program, with a hard-core attitude, do material evaluation, here is the Huangjia review, there is a group of professional, interesting, serious friends waiting for you.