What is a vector inverter refrigerator?

Vector frequency conversion: release the core power source of preservation. It is understood that in Japan, more than 65% of refrigerators sold every year are inverter refrigerators, and refrigerators with a capacity of more than 250 liters all adopt inverter refrigerator technology. Xu Yong, chairman of Qingdao Sanyo Electric Co., Ltd., told the media that the inverter refrigerator is very popular in Japan because it has the advantages of preservation and energy saving. As the biggest selling point of refrigerators this year, 84.7% of consumers in China regard preservation and energy saving as the main factors in purchasing refrigerators. Therefore, experts assert that the vector frequency conversion preservation technology based on the efficiency improvement of the power heart "compressor" for refrigerator preservation will be rapidly popularized in the future. In terms of energy-saving and fresh-keeping, the general methods include thickening the insulation layer and changing the door seal structure, but more fundamentally, frequency conversion technology is adopted, which can greatly improve the fresh-keeping ability of food and reduce energy consumption from the perspective of improving the driving efficiency of compressor. The experiments of Japanese professional research institutions show that the frequency and fluctuation of temperature shock in the refrigerator are greatly reduced by frequency conversion refrigerator, the nutritional freshness is 3-5 times longer than that of ordinary refrigerator, and the quick-freezing ability is 20-30% higher than that of ordinary refrigerator. At the same time, due to low frequency operation, energy consumption is effectively reduced by more than 38% and noise is greatly reduced. Therefore, the inverter refrigerator has become the mainstream product in the Japanese market. The popularization of large-capacity refrigerators will also promote the frequency conversion trend in China refrigerator market. 180 degree leap: open fast and lasting double keys. Food experts tell us that to keep food fresh, we need to meet three conditions: food should be kept at a low temperature within a suitable range, and the temperature should be kept constant; Keep the minimum temperature fluctuation; Keep the humidity high. In other words, keeping fresh means keeping proper "temperature" and "humidity" for a long time. Fast preservation depends on "speed". Hisense refrigerator inverter experts told reporters that the biggest feature of inverter compressor is that it can automatically adjust the speed at any time as needed. When the refrigerator is turned on, the inverter can quickly cool down by increasing the speed, so as to meet the requirements of low-temperature preservation at the fastest speed. Kazuo Nagata, a Japanese expert in frequency conversion technology, pointed out in his works that the ice-making speed can be shortened to 1/2 and the freezing speed can be shortened to one third. The characteristics of frequency conversion refrigerator also make the refrigerator have stronger quick freezing ability, especially the meat food in the cold room can be frozen 2-3 times quickly to achieve the purpose of quick preservation. Professor Shan, a famous refrigeration expert in China, proved this point: meat food will produce ice crystals between 0℃ and 5℃. If the temperature can be lowered quickly, the interstitial fluid in the cell membrane will only produce tiny ice crystals, which will reduce the loss rate of nutrient juice of thawed food by more than 50%. If you put it down slowly like an ordinary refrigerator, it will form large ice crystals, puncture the cell membrane and cause great nutrient loss. Let the food in the refrigerator enter the fresh-keeping state as soon as possible, which can be said to be the first key to uncover the secret of vector frequency conversion. Food preservation is very important, but the key is how to keep it fresh for a long time. Frequency conversion experts are quite confident in vector frequency conversion technology. Experts say that the vector inverter refrigerator drive technology ensures that the electromagnetic force is always consistent with the rotation direction of the permanent magnet rotor of the compressor motor 100% through the all-round accurate control of the inverter compressor rotor. Combined with the ingenious interactive control of the refrigeration system of frequency conversion circuit, the rotation speed of the compressor is adjusted through the induction of ice on the slight temperature change in the cabinet, and the temperature change in the refrigerator is controlled in the best state with the highest operating efficiency, thus making it most suitable for storage. The technological leap comes from "180 degrees": for the inverter compressor for refrigerator, there are two driving modes, one is 120 degrees square wave driving mode and the other is 180 degrees sine wave driving mode (that is, vector variable frequency driving mode). In terms of performance, the former commutates the driving current every 60 degrees, and the latter commutates at any time with the rotation of the rotor, which can accurately control the running state of the DC inverter compressor, with higher driving efficiency, less wear and more stable operation. On the basis of overall energy saving, the comprehensive effects of lasting freshness, long service life, noise reduction and mute are achieved. Because the frequency conversion refrigerator greatly reduces the frequency and fluctuation of the temperature in the refrigerator, the control of the temperature in the refrigerator tends to be constant, and the vector frequency conversion realizes the "long-term" preservation function of prolonging the preservation by 3 to 5 times. Because the implementation of vector frequency conversion technology involves complex algorithms and data processing, its technical difficulty and technical content are much greater. Vector frequency conversion technology is the most advanced frequency conversion technology in the world at present, and it is also a long-term preservation technology. At the same time, the vector frequency conversion technology adopts a unique wet frequency conversion refrigeration mode, which effectively circulates the moisture of frost attached to the cooler in the refrigerator under the freezing refrigeration mode, keeps the humidity in a high humidity state, and further strengthens the fresh-keeping effect inside the refrigerator. The second level of fresh-keeping cheats was successfully opened. Vector technology made in China: Hisense solves the world preservation equation. In early 2006, Hisense vector inverter refrigerator was listed as one of the "2005 China Household Appliances Industry 10 Innovative Products" and became the only refrigerator product shortlisted. Experts' evaluation of Hisense vector inverter refrigerator is: "This is the first time that China's refrigerator technology with independent intellectual property rights has reached the leading position in the global market in an important core application field." However, under various auras, vector frequency conversion has an unknown and difficult course in Hisense. In Japan, vector frequency conversion technology is called 180 degree frequency conversion technology, which is the most advanced refrigerator technology in the world. At present, it has occupied more than 50% of the high-end inverter market share in Japan. In August, 2004, when Li Yanquan, vice president of Hisense Refrigerator Technology, led technicians to Japan to inspect and discuss technical cooperation, Japanese counterparts said that 120 degree DC frequency conversion technology could be transferred with compensation, but 180 degree vector frequency conversion was completely impossible. "The frequency conversion technology is from 120 degrees to 180 degrees, which makes the control of the frequency conversion press improve from semi-closed loop to closed loop control performance, which is not only an improvement of indicators, but also an improvement of comprehensive performance such as silence, preservation and energy saving, which brings tangible benefits to consumers." Hisense refrigerator technicians said that after being rejected, Hisense did not give up. On the contrary, its determination to independently develop vector frequency conversion technology is more firm. In fact, as early as 2002, Hisense's R&D project aimed at breaking through the independent technology of vector frequency conversion had been started, and a team of more than 40 engineers led by a doctor was working hard to tackle the problem. At the end of 2004, the vector inverter refrigerator representing the highest technical level in China refrigerator industry was born in Hisense Refrigerator R&D Central Laboratory. The successful research and development of this technology has made Hisense refrigerator the first and only refrigerator manufacturer in China to independently design and produce frequency conversion control panel. Hisense vector inverter refrigerator made its debut at China International Consumer Electronics Expo in 2005. In the top technology of inverter refrigerator, Hisense once again keeps pace with world-class refrigerator enterprises. In May 2006, due to the excellent performance of Hisense refrigerators, Hisense successfully won the "Super Energy Saving Award" and "Industrial Design Potential Award" at the 2006 Beijing International Household Appliances Exhibition. A few days ago, Hisense refrigerator became the only refrigerator brand that won the bid in the refrigerator bidding project of the National Olympic Sports Center. According to Gao, director of the Equipment Center of the State Sports General Administration, the refrigerators for this tender will be used for hotels and rooms specially designed to receive athletes, media and VIPs from all countries of the Beijing Olympic Games, as well as for special purposes with higher requirements. Not only will the product's performance indicators pass strict testing, but also the technical strength and brand image of refrigerator enterprises will be comprehensively evaluated. Escort for the Olympics and health, Hisense Frequency Conversion once again leads. "We must stick to the road of frequency conversion. Frequency conversion not only represents the direction of fresh-keeping refrigerators in China, but also the general trend of the world. " After the successful Olympic bid, Hisense has more confidence in leading the refrigerator technology market. Technology+Quality: Seize the fast lane of international refrigerator brands. Hisense people who are persistent in technology and quality have a set of quite novel opinions. Hisense believes that technology and quality are the bottom of a brand. Without high-quality products, there will be no first-class high-end market share. Similarly, there will be no first-class brands. Zhou Houjian, chairman of Hisense Group, even pointed out: "Quality can't make the enterprise brilliant, but it can make the enterprise bankrupt." . In order to verify the reliability and strength of the refrigerator door switch, Hisense refrigerator has been opened and closed at least 6.5438+0.2 million times in the opening experiment, which is far higher than the national and international standards. Hisense has developed 15 leading technologies and patents for only one product of Lannuo refrigerator. Since 200 1, Hisense refrigerators have maintained a continuous growth of more than 100%, and in February 2005, they ranked among the top four in the industry and the third in domestic brands. The retail monitoring results of Zhongyikang Company show that compared with the same period of last year, the sales volume of Hisense refrigerators increased by 84.63% year-on-year, which is 0/0 times higher than the average growth rate of the industry, ranking among the top ten in the industry. This is also the first time that Hisense Refrigerator has been ranked first in the industry for 13 months in a row. In the appraisal of new products in May this year, Hisense Refrigerator 10 series products all passed the appraisal of authoritative organizations, including 7 internationally advanced products and 3 internationally advanced products. Professor Marsberg of the Sino-German Graduate School of Tongji University pointed out that in order to truly realize the transformation from "Made in China" to "Invented in China" and then to "China Brand", it is necessary to change the market strategy, from the price winning route to the quality winning route. How can each industry or enterprise in China better participate in PK in the international market? More and more companies like Hisense will give more solid answers, from independent technological innovation to shaping quality advantages.