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JiangSu JinPan Electrical CO.,LTD
Address: Jiangsu Haian County Industrial Park
Telephone: 0513-88890981
                   0513-88890982
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In recent years our country domestic electronic transformer created new progress
【 Source: 】 【 Release time:2012-09-19 】 【 Typeface:Large In Small

   

In recent years, electronic transformer in power supply used in the core material and conductive material prices continue to rise, the upstream raw materials to form a seller's market. As dirty electronic transformer power user, can ( Kě) in the global context selection ( Z é) and procurement, formed buyer's market. In the center ( Ji ān ) status of electronic transformer industry, only taking technology innovation road, to release the ends from predicament. However, in mature electronic transformer industry, technology innovation is hard ( ná n ). But each tiny link is improved, can bring new ideas and new products.

On the role play industry website, promote industry inion work ( Zu ò).

In recent years, electronic transformer in power supply used in the core material and conductive material prices continue to rise, the upstream raw materials to form a seller's market. As dirty electronic transformer power user, can be in a global context selection and procurement, formed buyer's market. In the centre position of the electronic transformer industry, only taking technology innovation road, to release the ends from predicament. However, in mature electronic transformer industry, technology innovation is hard. But each tiny link is improved, can bring new ideas and new products.

Technology innovation road, always remember to reach the goal ( D ì). The power of electronic transformer ( D ì), like all as a commodity like the product of any technology innovation, is essential in the specific application to complete specific efficacy, seeking the best cost performance ratio. Now the power products, widely with "light, thin, short, small " for the characteristics of miniaturization and portable. Electronic transformer must adapt to the user as the power supply products on volume ( V ) and the weight of the request. At the same time, the electronic transformer of raw materials ( iron core material and conductive material) price. Therefore, how to reduce the size and weight, how to reduce cost, become in recent years electronic transformer main growth direction.

Silicon steel is a power electronic transformer in power supply application of substantial core data. To reduce the amount of electronic transformer iron core, must mention ( t í) high silicon steel flux density ( flux density ). Silicon steel flux density resolution in both saturation magnetic flux density, and resolution loss. Because of the effectiveness of electronic transformer is main function index, now, in order to save energy, a lot of power supply products are put forward request for standby power loss. Electronic transformer iron core loss is the main component of standby power loss, is based on the electronic transformer, the effectiveness of proposed that strict or loss.

In recent years, orientation and non-oriented cold-rolled silicon steel prices, winding toroidal core, compared to the R type, CD type and EI type iron core, because consume less inion, can save more than 20% of the core material costs, expanding the scope of application of electronic transformer. Winding type annular iron core can give full play to the function and orientation of cold-rolled silicon steel, cold-rolled non-oriented ( zh á) steel analogy, the flux density is much higher. At the same time as the R type, CD type and EI type iron core that can make use of materials, silicon steel, no corner waste, data application rate can reach more than 98%.

As a kind of electronic transformer power transformer, take the flux density in the core of high inion, can not cut the core section and volume, but to reduce the number of turns of the coil, the reduction of the amount of copper. At the moment of copper price is much higher than that of core data, may be more ( g èng ) a good design improvement plan.

Soft ferrite in high frequency electronic transformer in power supply, a large number of applications of core data, and is more soft magnetic material, soft magnetic ferrite saturation flux density is low, low permeability, low Curie temperature, it is the major weakness. Curie especially at low temperature, saturation flux density Bs and unit volume power loss Pcv City Hu ì) with temperature change. The temperature rise, the landing Bs, Pcv began to fall, to the valley after the increase in. In high temperature condition, as long as the Bs adhere to higher degree, can put the flux density in some selected HISTEP Bm, thereby reducing the number of turns of the coil, decreased copper consumption and cost. High saturation flux density of soft ferrite materials, can also be extended electronic transformer application temperature upper limit to 120 and even 150 benefits. For example, automotive electronic equipment of high-frequency electronic transformers, the outside temperature changes and premise of engine room have a fever in the high temperature condition, it is necessary to adopt high saturation magnetic flux density of soft ferrite. Soft magnetic composite materials ( SMC ) is the last century 90 years opening up a new soft magnetic material, its starting point is to make the metal soft magnetic material working frequency to the MHz grade and GHz grade is extended, with metal soft magnetic materials and other high resistance material, such as quartz, ceramic, high ( f èn sub data ) compound in a road, as long as control the metal soft magnetic material volume percentage ( fē n ) number in the percolation limit below, is likely to insist on soft magnetic characteristics, and cut all kinds of high frequency loss, becoming a kind of new soft magnetic material?? soft magnetic composite materials, choose the English name the first letter, referred to as SMC data. Soft magnetic composite materials of the magnetic particles can be so pure iron, nickel, cobalt, iron, nickel alloy Fe Ni Mo alloy, aluminum alloy, Fe-based amorphous alloy, Fe-based amorphous alloy and iron soft magnetic ferrite by after the destruction of the powder made from. Non magnetic objects can be silicon dioxide insulator, silicon resin, polyethylene ( PE ), epoxy resin and other polymer materials for the adhesive and stearic acid as lubricant. Magnetic particles and non-magnetic object mixed ( H ùn ) and can be disposed through insulation, depressed, forming, sintering and processing into powder core, can also take this plastic engineering skills, injection molding into various complex shapes of cores. Soft magnetic composite material strengths is the density of small, light weight, low cost, high production efficiency, good product consistency. Trouble is that because the magnetic particles are separated from the non-magnetic object, magnetic block, magnetic permeability and generally are less than 100, recently reported by nanotechnology and other approaches, has opened up a permeability across the 1000 soft magnetic composite materials, the maximum is 6000.

Polymer / soft magnetic composite materials in recent years to grow quickly, in foreign countries have used this inion to make high frequency power transformers and inductors, and establish the response analysis theory and design process. According to the authors' knowledge, although the domestic were soft magnetic materials research and development, but also did not see for power electronic transformer in reports.

Now, China is opening up for electronic transformer in power supply of various types of aluminum wire. Some companies have developed copper clad aluminum wire, copper wire in the outer layer, occupies an area of 15%, the total proportion of 3.63 g /cm3, considering skin effect and ( H è) near effect, this kind of copper clad aluminum wire resistivity than pure aluminum will be much smaller, and the cost increases not much, is a kind of sufficient play copper and aluminum consequences composite materials.

In recent years another noteworthy is the trend of development, is the choice of temperature index is high, heat resisting high grade polyesterimide enamelled wire 180 QZY and 220 QYZ polyimide enameled wire, lead to the increase of current density, the diameter of the wires cut, cut the amount of copper, iron core window area cut, with iron content also cut, can be decreased overall costs. Especially for the request has the advantages of small volume high frequency small power transformers, take the heat resistance and better enameled wire, can appear the technique economic benefits.

Power supply technique and power electronic techniques include switching voltage transion technique, is a kind of " pure " electronic transformers, low voltage into high voltage can boost converter, or high voltage into low pressure buck, their main way is to take power electronics technology electrical conversion frequency, thus shortening ( Su only ) small circuit for transformers and inductors in volume, not to cancel this in transformers and inductors. Previous to this, the power electronic circuit and electronic transformer ( Ji é) together, did not cause enough attention. In recent years, along with the electric power system request to cut the input and output harmonics, improve power factor, to achieve "green transion " cry is increasingly rising ( zhǎ ng ), domestic and International launched the " power electronic transformer " seminar, to summon the delibrate open climax. Study of how to use power electronics technology on power transion and the control of power electronic transformer, used to replace the traditional electromagnetic type distribution transformer. Now single phase transion and phase transion of multiple circuit form, this kind of power electronic transformer not only can be used for high voltage and large current power category, can also be used for high or low voltage small current category, for instance some high voltage power generator and small power voltage regulating power supply.

Our country is engaged in the research, development electronic transformer production unit is home to over 2000, the state-owned, private and foreign-funded enterprises. The world's largest electronic transformer manufacturer of the United States ( United States ) MIPS company and the world's largest soft ferrite manufacturers in Japan ( Japan ) TDK company is in China oil and gas pipeline ( want to know the latest situation and the future development planning? Bo net burning year Juxian " oil and gas pipeline plan " integration multiple data, carefully marked the first domestic oil and gas pipeline plan. In recent years our country domestic electronic transformer creating new development in our country has a production base. Many of the world's advanced electronic transformer skills, production technology and product in our country brings together in one way. The face of such a variety of platforms, skills exchange is have a brilliant future.

Polymer / soft magnetic composite materials in recent years to grow quickly, in foreign countries have used this inion to make high frequency power transformers and inductors, and establish the response analysis theory and design process. According to the authors' knowledge, although the domestic were soft magnetic materials research and development, but also did not see for power electronic transformer in reports.

Now, China is opening up for electronic transformer in power supply of various types of aluminum wire. Some companies have developed copper clad aluminum wire, copper wire in the outer layer, occupies an area of 15%, the total proportion of 3.63 g /cm3, considering skin effect and near effect, this kind of copper clad aluminum wire resistivity than pure aluminum will be much smaller, and the cost increases not much, is a kind of sufficient play copper and aluminum composite material consequences.

In recent years another noteworthy is the trend of development, is the choice of temperature index is high, heat resisting high grade polyesterimide enamelled wire 180 QZY and 220 QYZ polyimide enameled wire, lead to the increase of current density, the diameter of the wires cut, cut the amount of copper, iron core window area cut, with iron content also cut, can be decreased overall costs. Especially for the request has the advantages of small volume high frequency small power transformers, take the heat resistance and better enameled wire, can appear the technique economic benefits.

Power supply technique and power electronic techniques include switching voltage transion technique, is a kind of " pure " electronic transformers, low voltage into high voltage can boost converter, or high voltage into low pressure buck, their main way is to take power electronics technology electrical conversion frequency, thereby reducing the circuit in transformers and inductor volume, not to cancel this in transformers and inductors. Previous to this, the power electronic circuit and electronic transformer combined way, did not cause enough attention. In recent years, along with the electric power system request to cut the input and output harmonics, improve power factor, to achieve "green transion " cry is increasingly rising, domestic and International launched the " power electronic transformer " seminar, to summon the delibrate open climax. Study of how to use power electronics technology on power transion and the control of power electronic transformer, used to replace the traditional electromagnetic type distribution transformer. Now single phase transion and phase transion of multiple circuit form, this kind of power electronic transformer not only can be used for high voltage and large current power category, can also be used for high or low voltage small current category, for instance some high voltage power generator and small power voltage regulating power supply.

Our country is engaged in the research, development electronic transformer production unit is home to over 2000, the state-owned, private and foreign-funded enterprises. The world's largest electronic transformer manufacturers to produce the United States of America MIPS company and the world's largest soft ferrite manufacturers in Japan TDK companies in China with production base. Many of the world's advanced electronic transformer skills, production technology and product in our country brings together in one way. The face of such a variety of platforms, skills exchange is have a brilliant future.

Add time:2012-09-19  Browsing times:436



JiangSu JinPan Electrical CO.,LTD
Telephone:0513-88890981 Fax:0513-88890388 Address: Jiangsu Haian County Industrial Park Background log