Current status and trends of electronic transformers

Along with the development of China's electronics industry, the electronic transformer industry has also made great progress, especially in the past 20 years, the rapid advancement of science and technology, the wide application of electronic technology in various fields, the increasing demand for consumer electronic products by users, the electronic transformer The development of the industry has brought infinite vitality.

Products move from "tradition" to "new type"

China's electronic transformer industry has achieved rapid development in the past 20 years:

First, the economic growth of the electronic transformer industry is accelerating.

The electronic transformer is a component that is used for the electronic whole machine and serves the electronic circuit. According to incomplete statistics, in 2007, there were nearly 3,000 factories producing electronic transformers, with an annual sales income of 25 billion yuan and hundreds of varieties of products. They can be used for all kinds of complete machines and have become one of the world's largest electronic transformer manufacturers. 60% of the output of electronic transformers is used to meet the needs of the international market. By implementing the strategy of “winning by quality”, the export of electronic transformers has gradually formed a climate.

Secondly, the process equipment of the electronic transformer industry is improving day by day.

In the past 20 years, the production process of electronic transformers has been improving, from backward manual operations to today's fully automatic mechanization. The production methods of electronic transformers are continuously improved and improved on the basis of drawing on foreign advanced experience and combining with the actual production situation in China. For example, in recent years, the production of micro-transformers and coils has introduced advanced equipment and production lines from abroad, basically getting rid of the state of manual operation, high production efficiency, and good stability and consistency of product quality.

Finally, electronic transformer products move from “traditional” to “new”.

Twenty years ago, electronic transformer products were mostly large, heavy and thick. With the development of microelectronics technology and the technological advancement of active devices, the volume of electronic whole products was greatly reduced, and the weight was greatly reduced. The demand for traditional accessory products has dropped by about 50%, and it has gradually been replaced by new accessory products (slices, miniaturization). The demand of the market has promoted the development of electronic components and components including electronic transformers in a light, thin and small direction. The production process of electronic transformers is undergoing a tremendous transformation. In the past 20 years, electronic transformers have also developed in the direction of high frequency, low loss, light weight and small volume.

The R-type transformer has the characteristics of less magnetic leakage, small no-load current, light weight and thinness. It is a new type of electronic transformer. Since 1993, it has been studied by engineers and technicians in the electronic transformer industry in China for more than 10 years. I explored the development and production of R-type transformer cores and coils, and contributed to the localization of the new R-type transformers.

Piezoelectric ceramic transformer is also a new type of transformer, which has been widely used in foreign countries. The production of piezoelectric ceramic transformer has changed the traditional production mode of transformer. The main raw material core and enameled wire are replaced by piezoelectric ceramic material, which makes the processing technology of transformer. A fundamental change has taken place. Piezoelectric ceramic transformer is small in size, light in weight, less than 4mm in thickness, high in conversion efficiency, does not cause electromagnetic interference, and is not interfered by external magnetic field. It has good flame retardancy and is suitable for high voltage, small current, low power and ultra-thin. Type of equipment. At present, China's research on piezoelectric ceramic transformers is gradually deepening, and some enterprises have been able to carry out small-scale production and supply.

Take the road of technological progress

"There is a transformer with electricity." With the continuous enrichment of electronic products, the prospects of the electronic transformer industry will be even better. In the future, China's electronic transformer industry will present the following developments:

First, institutional reforms have deepened and accelerated economic growth.

With the further encouragement of the state to encourage the implementation of policies related to the non-public sector of the economy, non-public enterprises have sprung up and presented a momentum of rapid development. These enterprises have promoted the improvement of the technological level of the industry, broadened the sales channels, promoted market prosperity and enhanced the economy of the industry. vitality. It is estimated that at the end of the "11th Five-Year Plan", the total output of the industry will reach more than 5 billion, the sales income of products will be more than 37 billion yuan, and the profit will be more than 1.8 billion yuan.

Second, the growth of foreign exchange earning through exports has boosted corporate management.

After China's accession to the WTO, the international market for electronic transformers is basically in a stable state. In 2007, the export value of electronic transformers was around US$1.3 billion. During the “Eleventh Five-Year Plan” period, the export of electronic transformers will increase, with an estimated US$2 billion. Will continue to maintain a surplus.

Foreign exchange earning requires companies to implement green environmental regulations and produce “green” products that do not contain harmful substances. Enterprises will accelerate the process of “green” process technology, and propose new issues in the application of “green” material parts and improvement of lead-free assembly technology.

Third, the market economy will promote technological advancement in the industry.

Electronic transformer enterprises will surely take the road of technological progress in the future development. Although the traditional old products have market and production, but the profit margin is very small, it is impossible to form a strong competitiveness. The main profit point of the transformer lies in the new generation of high-end products, the rapid rise of passive integration technology, and the micro-chip type. The comprehensive upgrading of machine products has provided transformer enterprises with a technical entry point to achieve leap-forward development.

In recent years, the development front of the electronic transformer industry, such as power ferrite materials, soft magnetic alloy materials, amorphous crystalline magnetic materials, nano-alloy magnetic materials, piezoelectric ceramics, nano-insulating materials, etc. have achieved fruitful development, this is an electronic transformer The technological advancement of the industry has created favorable conditions. The electronic transformer will develop in the direction of high frequency, low loss and chip type with the miniaturization of the whole machine.

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