First, the appearance of the three-door refrigerator is more beautiful. Compared with two refrigerators, the proportion of three refrigerators is more balanced. Generally, two refrigerators are door-to-door refrigerating rooms, and the lower-door freezing room. The refrigerating room is larger than the freezing room, giving people the impression that the proportion is not very coordinated. However, due to the addition of a changing greenhouse between the freezer and the freezer, the three-door refrigerator looks more balanced.
Second, three refrigerators have a changing greenhouse. For example, meat products need to be stored for a long time at a low temperature of no more than -18°C. However, the meat stored at -18°C is basically frozen meat. This kind of meat can not be eaten immediately and must be thawed. When the meat is placed in a changing greenhouse, there is no need to thaw after adjusting the temperature. It is even better. Keep fresh.
Third, the three-door refrigerator has a larger capacity. Currently, the capacity of three refrigerators on the market is generally between 200 liters and 280 liters, and it also has a fresh-keeping function. However, ordinary two-door refrigerators generally have a capacity of 170 to 220 liters. By the summer, the advantages of large storage capacity of the three refrigerators will be more obvious.
As for power consumption, the three-door refrigerators and the two-door refrigerators have already had little difference. The average two-door refrigerator consumes 0.5 kW/hour per day, and currently the three-door refrigerator consumes 0.7 kW/hour per day. The two refrigerators have a slight advantage, but it is not very obvious.
In addition, consumers will certainly be very concerned about price issues: from two to three, does that mean that prices will be much more expensive? In fact, this concern can basically be dispelled. Overall, the three-door refrigerator is a little expensive, but the gap with the two refrigerators is getting smaller and smaller.
Before 2010, the three-door refrigerator was still a rarity. The spread between the refrigerator and the two refrigerators at that time had been above 2,000 yuan. In the past two years, as the competition has intensified, the price gap with the two refrigerators has narrowed. In the past two years, major domestic brands such as Haier, Hisense, Rongsheng, and Meiling have all seen the trend of three alternatives, taking the initiative to launch low-end products to seize the market, and promote the rapid expansion of the three-door refrigerator market. According to the statistics of relevant market institutions, by 2012, products under 3,000 yuan have occupied half of the three refrigerator retail markets. Nearly two-thirds of domestic brands' retail prices for three-door refrigerator products are below 3,000 yuan. The share of retail sales of low-priced products of foreign brands is also rising, but it is still more keen to develop high-end markets of more than 6,000 yuan.
Of course, two refrigerators also have their own advantages, such as small footprint and power saving. However, with the maturity of the three-door refrigerator technology, the latter has not had a great advantage.
High Frequency PCB
High frequency PCB also called HF PCB.The RF frequency range is typically from 500 MHz to 2 GHz, and designs above 100 MHz are considered RF. The microwave frequency range is anything above 2 GHz. There`s a considerable difference between RF and microwave circuits versus typical digital and analog circuits. In essence, RF signals are very high frequency analog signals. Therefore, unlike digital, at any point in time an RF signal can be at any voltage and current level between minimum and maximum limits. We have much experience in this filed,up to 60 GHz PCB we made.
1.Made of special Resin system material with Low ER and Low loss factor
2.Hybrid Build up mix of FR4 with Low loss material3.Tight Impedance control
4.Used in Automotive, Radar, CAR to CAR communication, Distance Assistance, Active Drive Systems
We say high frequency ,also like RF PCB and Microwave PCB as they are special material too,not usual FR4 .We have Taconic,Rogers,F4B,F4BM.PTFE material in stock.With this,we can do your special boards quick turn.Unlike other suppliers need long time to purchase material.
RF PCB
RF PCB,RF Electronic PCB,RF Design PCB,Specialize Flex RF PCB
Storm Circuit Technology Ltd , https://www.stormpcb.com