CN205336133U - High frequency contravariant DC power supply - Google Patents

Abstract

The utility model discloses a high frequency contravariant DC power supply, wherein be connected the common -mode input inductance between ABC three -phase input power end and the rectification, main transformer nanometer crystal layer magnetic core has, the output reactance utensil have metallic glass layer magnetic core. The perfect solution of the transformer of the nanocrystalline crystal layer magnetic core of this novel adoption traditional transformer dc -to -ac converter defect of (20KHZ) under the high frequency state, with the DC power supply of traditional depressor relatively, output same size's electric current, efficiency can promote 11% -12%. Consequently, the high frequency contravariant DC power supply who, has apparent economize on electricity effect. Consequently, add the magnetic field needs during this novel annular nanocrystalline alloy magnetic core thermal treatment who is applicable to various models.

Description

High-frequency inversion DC source

Technical field

This utility model manufactures field for nanometer crystal alloy magnetic core, the power supply applying magnetic field process during specifically for circular nano crystalline substance magnetic core heat treatment。Adopt this high-frequency inversion DC source can promote power-efficient 11%-12%。

Background technology

Nanometer crystal alloy material has the electromagnetic performance of excellence, developed rapidly in recent years, its high permeability having, low-loss feature, it is widely used at high-technology fields such as power electronics, computer, communication, Aero-Space, therefore its volume of production is expanding gradually, circular nano peritectic alloy magnetic core has a necessary operation to seek to the applying high-intensity magnetic field when heat treatment in process of production, the DC source power needed is big and the persistent period is longer again, adopting common silicon steel core transformers DC source under power frequency in the past, power consumption is big。Therefore the efficiency promoting power supply is significant。

Summary of the invention

In view of above-mentioned present situation, this utility model provides a kind of high-frequency inversion DC source so that it is the DC source power consumption under power frequency is little, promotes the efficiency of power supply。Also there is volume simultaneously little, conveniently moving and manufacturing and the low feature of maintenance cost。

Technical solution of the present utility model is: a kind of high-frequency inversion DC source, including, rectification, frequency conversion, main transformer, output reactance device；Wherein: between described ABC three-phase input supply terminal and rectification, be connected common mode input inductance；Described main transformer has nano-crystalline layers magnetic core；Described output reactance utensil has amorphous alloy layer magnetic core。

During this is novel, mentioned common mode input inductance is nanocrystalline magnet core inductance。

Further, the nano-crystalline layers magnetic core of described main transformer is the run-track shaped of oblate body。

Further, the operating frequency of high-frequency inversion DC source is at 18-20kHz。

The beneficial effects of the utility model are: 1, the input of the common mode in the critical component of power supply inductance, adopt nanocrystalline magnet core inductance, abandon traditional ordinary ferrite material, but have employed the nanocrystalline material that comprehensive magnetic can be excellent, make capacity of resisting disturbance be greatly improved, effectively filter out various peak voltage and various high-frequency harmonic, noise signal。It addition, high frequency transformer have employed ultra-thin low-loss nanocrystalline magnet core, the anti-saturation ability of transformator is improved significantly, and iron loss and copper loss reduce greatly simultaneously, and the output electric current of power supply, voltage waveform and stability there has also been very big improvement。The transformator adopting nanocrystalline material perfectly solves traditional silicon steel disc inverter various defects of (20KHZ) under high frequency state。Additionally, power supply is exported DC characteristic by the state of power supply secondary rectified waveform plays key effect, and outputting inductance is the critical piece controlling output waveform。Therefore, outputting inductance have employed non-crystaline amorphous metal core inductance, it is ensured that the current waveform of power supply output is more steady。Due to the energy conservation characteristic of amorphous, nanometer crystal alloy core inductance, making the various losses etc. of power supply further reduce, efficiency improves further。2, volume is little, lightweight, and work conveniently moving。Owing to the maximum feature of power supply is the operating frequency increased substantially, it is operated in high performance nano-crystal alloy core transformator for core component under the frequency of 18-20kHz, brings plurality of advantages therefrom。The number of turn W of the long-pending S of the terminal voltage of main transformer winding, electromotive force E, the frequency f of electric current, magnetic flux density B, core section and winding has following relation:

U≈E=4.44fBSW

After U, B determine, if frequency f improves, then the long-pending S and umber of turn W of core section can reduce accordingly, and therefore the volume and weight of transformator can greatly reduce, and adopts the transformator of nanocrystalline material, less than silicon steel core transformator of its volume and weight。Outputting inductance is also same reason, and volume and weight also can significantly reduce。Therefore, core loss can be substantially reduced。3, manufacture and maintenance cost is low。Power supply unit is all domestic, and its core component is manufactured by our company, less costly。The main control board of power supply and igbt transistor and some other standard fitting entrust to professional and complete business to make, and steady quality is reliable。Common mode input inductance, main transformer and output reactance device are manufactured by our company, because which employs amorphous & nanocrystalline, it is possible to the consumption of a large amount of metal materials such as saving copper, aluminum, material cost is lower。4, energy-efficient。The efficiency of this high-frequency inversion DC source, up to 80%～90%, exceeds more than 10% than the efficiency of common silicon steel core transformers DC source in theory。We are to the measurement of actual energy consumption situation and statistics, and result shows that power-efficient improves 11%-12%。

Accompanying drawing explanation

Fig. 1 is the schematic diagram that this is novel；

Fig. 2 is Fig. 1 reference example applied。

Detailed description of the invention

Below in conjunction with accompanying drawing embodiment, the utility model is described in further detail。

A kind of high-frequency inversion DC source as shown in Figure 1, connects a common mode input inductance 1 including ABC three-phase input supply terminal, inputs inductance 1 by common mode and be connected with rectification 2, frequency conversion 3, main transformer 4, secondary rectification 5 and output reactance device 6 in turn。In the present embodiment, described common mode input inductance 1 is nanocrystalline magnet core inductance。Therefore, by nanocrystalline magnet core inductance, improve capacity of resisting disturbance further, effectively filter out various peak voltage and various high-frequency harmonic, noise signal。Main transformer 4 described in the present embodiment is ultra-thin low-loss nano-crystalline layers magnetic core, and the nano-crystalline layers magnetic core of the main transformer 4 of the present embodiment is the run-track shaped of oblate body。So, being conducive to improving the anti-saturation ability of main transformer 4, iron loss and copper loss reduce greatly simultaneously, and the output electric current of power supply, voltage waveform and stability there has also been very big improvement。The output reactance device being previously mentioned in the present embodiment is amorphous alloy layer magnetic core。Equally, the energy conservation characteristic that the output reactance utensil because have employed amorphous alloy layer magnetic core has, make the various losses of power supply reduce further, efficiency is improved。Coordinate secondary rectification, it is ensured that the current waveform of power supply output is more steady simultaneously。

In above-mentioned, mentioned rectification 2, frequency conversion 3, main transformer 4, secondary rectification 5 and output reactance device 6 structural portion adhere to known technology separately, therefore omit its statement。

See that Fig. 2 gives concrete Application Example。The DC output end utilizing high-frequency inversion DC source connects and adds magnetic heat treatment stove。Owing to the operating frequency of high-frequency inversion DC source is at 18-20kHz, the use needs adding magnetic-field heat treatment of circular nano peritectic alloy magnetic core can be met。

Claims (4)

1. a high-frequency inversion DC source, including, rectification, frequency conversion, main transformer, output reactance device；It is characterized in that, between described ABC three-phase input supply terminal and rectification (2), be connected common mode input inductance (1)；Described main transformer (3) has nano-crystalline layers magnetic core；Described output reactance device (6) has amorphous alloy layer magnetic core。

2. high-frequency inversion DC source according to claim 1, is characterized in that, described common mode input inductance (1) is nanocrystalline magnet core inductance。

3. high-frequency inversion DC source according to claim 1, is characterized in that, the nano-crystalline layers magnetic core of described main transformer (4) is the run-track shaped of oblate body。

4. high-frequency inversion DC source according to claim 1, is characterized in that, it is characterized in that, the operating frequency of high-frequency inversion DC source is at 18-20kHz。