CN202058527U - Magnetic core device based on high-power square-wave power output terminal - Google Patents
Magnetic core device based on high-power square-wave power output terminal Download PDFInfo
- Publication number
- CN202058527U CN202058527U CN2011200513589U CN201120051358U CN202058527U CN 202058527 U CN202058527 U CN 202058527U CN 2011200513589 U CN2011200513589 U CN 2011200513589U CN 201120051358 U CN201120051358 U CN 201120051358U CN 202058527 U CN202058527 U CN 202058527U
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- magnetic core
- copper bar
- power output
- core device
- utility
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Abstract
The utility model provides a magnetic core device based on a high-power square-wave power output terminal. The internal diameter of magnetic cores is matched with an outlet copper bar, the magnetic cores are sleeved in the copper bar, a heat-shrinkable tube is wrapped on the copper bar, and a clearance between the copper bar wrapped by the heat-shrinkable tube and the magnetic cores is filled with hot melt adhesive. The magnetic core device provided by the utility model can effectively protect IGBT (Insulated Gate Bipolar Transistor) elements in a circuit against damage, meanwhile, the magnetic cores are light and convenient to transport and install, and the cost is also reduced.
Description
Technical field
The utility model relates to a kind of magnetic core arrangement based on high-power square wave power output.
Background technology
The DC power supply of electric power system mainly adopts high frequency switch power, and similarly power electronic equipment is becoming topmost harmonic source.High order harmonic component produces very strong interference to equipment, and the basic reason that harmonic wave produces is because due to the nonlinear load.When electric current is flowed through load, not linear with the institute making alive, thus produce harmonic wave.The switching circuit of high-power square wave power is in interrupting process, its input and output all can produce high order harmonic component, the harmonic wave of its input also can disturb electric equipment generation on every side by input power cord, even cause surrounding devices to use, instrument signal distortion on every side, common many powerful devices adopt the IGBT module, and are short especially but IGBT can tolerate the time of short circuit, are generally in the 10uS.And, too fast if electric current rises, also cause IGBT to damage easily.
For suppressing harmonic wave to surrounding devices, the normal influence of using of instrument, all smoothing reactor need be installed at input, the outlet side of large power supply usually, complete equipment rated power is high more, and electric current is big more, and manufacturing cost is higher.
Summary of the invention
The purpose of this utility model is to overcome the deficiency that prior art exists, and a kind of magnetic core arrangement based on high-power square wave power output is provided, and magnetic core is light and be convenient to transportation and reduced cost simultaneously.
The purpose of this utility model is achieved through the following technical solutions:
Magnetic core arrangement based on high-power square wave power output, it is characterized in that: the internal diameter of described magnetic core and outlet copper bar coupling, and described magnetic core is placed in copper bar, and described copper bar is enclosed with heat-shrinkable T bush, and the copper bar of described parcel heat-shrinkable T bush and the gap between the magnetic core are filled with PUR.
Further, above-mentioned magnetic core arrangement based on high-power square wave power output, wherein, magnetic core arrangement is set in high-power square wave power output.
The substantive distinguishing features of technical solutions of the utility model and progressive being mainly reflected in:
The utility model reduces volume weight and more helps carrying, and has saved cost simultaneously greatly.
Description of drawings
Below in conjunction with accompanying drawing technical solutions of the utility model are described further:
Fig. 1: organigram of the present utility model;
Fig. 2: end view of the present utility model.
The implication of each Reference numeral sees the following form among the figure:
Embodiment
As shown in Figure 1, magnetic core arrangement based on high-power square wave power output, magnetic core 1 internal diameter and outlet copper bar 2 couplings and magnetic core 1 are placed in outlet copper bar 2 places, copper bar 2 is enclosed with heat-shrinkable T bush, be enclosed with the copper bar 2 of heat-shrinkable T bush and the gap between the magnetic core 1 and be filled with PUR 3, make it keep relative position not change, then be enclosed with heat-shrinkable T bush after heating at the magnetic core 2 that is filled with PUR.
During concrete the application, when magnetic core arrangement is connected in high-power square wave power output, magnetic core arrangement utilizes the principle of electromagnetic induction to carry out work, magnetic core arrangement itself has certain inductance, magnetic core arrangement just stops the variation of electric current, when magnetic core arrangement did not have electric current to pass through, magnetic core arrangement stoped electric current to flow through, and its electric current is not existed in circuit; When having electric current to flow through magnetic core arrangement, disconnect moment at circuit, this moment, magnetic core arrangement will produce the constant electric current of electric current in the holding circuit, and its circuit can be worked normally, and wherein magnetic core arrangement is almost nil to galvanic resistance.
When magnetic core arrangement series connection output loop, the rate of change that or a plurality of magnetic core suppress electric current can be installed according to actual needs, can prevent the damage of IGBT simultaneously.The magnetic core of installing is many more, current changing rate is suppressed good more, but can cause the output meeting to produce certain voltage drop on magnetic core, consumes certain reactive power, promptly will take all factors into consideration each factor in practice magnetic core arrangement is installed.
The utility model can reduce volume weight and more help carrying, and the skin of magnet ring is enclosed with heat-shrinkable T bush and can prevents to be heated, to make moist, to be hit, and has saved cost simultaneously greatly.
It is emphasized that: above only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (2)
1. based on the magnetic core arrangement of high-power square wave power output, it is characterized in that: the internal diameter of described magnetic core and outlet copper bar coupling, and described magnetic core is placed in copper bar, and described copper bar is enclosed with heat-shrinkable T bush, and the copper bar of described parcel heat-shrinkable T bush and the gap between the magnetic core are filled with PUR.
2. the magnetic core arrangement based on high-power square wave power output according to claim 1 is characterized in that: described magnetic core arrangement is set in high-power square wave power output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200513589U CN202058527U (en) | 2011-03-01 | 2011-03-01 | Magnetic core device based on high-power square-wave power output terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200513589U CN202058527U (en) | 2011-03-01 | 2011-03-01 | Magnetic core device based on high-power square-wave power output terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202058527U true CN202058527U (en) | 2011-11-30 |
Family
ID=45018493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200513589U Expired - Lifetime CN202058527U (en) | 2011-03-01 | 2011-03-01 | Magnetic core device based on high-power square-wave power output terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202058527U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280954A (en) * | 2013-06-04 | 2013-09-04 | 国家电网公司 | Output end strengthening device for square wave variable-frequency power source |
-
2011
- 2011-03-01 CN CN2011200513589U patent/CN202058527U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280954A (en) * | 2013-06-04 | 2013-09-04 | 国家电网公司 | Output end strengthening device for square wave variable-frequency power source |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111130 |
|
| CX01 | Expiry of patent term |