CN203434874U - Igbt module power unit - Google Patents
Igbt module power unit Download PDFInfo
- Publication number
- CN203434874U CN203434874U CN201320509753.6U CN201320509753U CN203434874U CN 203434874 U CN203434874 U CN 203434874U CN 201320509753 U CN201320509753 U CN 201320509753U CN 203434874 U CN203434874 U CN 203434874U
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- China
- Prior art keywords
- igbt
- heat exchanger
- bus bar
- liquid cooling
- cooling heat
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- 239000002131 composite material Substances 0.000 claims abstract description 39
- 238000001816 cooling Methods 0.000 claims abstract description 37
- 239000007788 liquid Substances 0.000 claims abstract description 37
- 239000003990 capacitor Substances 0.000 claims description 35
- 239000010409 thin film Substances 0.000 claims description 30
- 238000001914 filtration Methods 0.000 claims description 28
- 238000010521 absorption reaction Methods 0.000 claims description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 12
- 229910052802 copper Inorganic materials 0.000 claims description 12
- 239000010949 copper Substances 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000005855 radiation Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model relates to an IGBT module power unit. The power unit comprises a liquid cooling heat exchanger, a first composite busbar, a second composite busbar, a first IGBT power assembly, and a second IGBT power assembly. The first composite busbar and the second composite busbar are symmetrically disposed on two sides of the liquid cooling heat exchanger, and the first IGBT power assembly and the second IGBT power assembly are symmetrically disposed on two sides of the liquid cooling heat exchanger. The IGBT module power unit satisfies design requirement of high power level and high power intensity, so overall dimension of a device is smaller, cost is lower, and assembly and disassembly are more convenient, and production efficiency is improved.
Description
Technical field
The utility model relates to a kind of IGBT modular power cells, is applied to solar inverter and wind energy converter.
Background technology
Current, solar power generation and wind power generation development are swift and violent, and power grade and power density require more and more higher.The power cell that the IGBT of usining is core component is as the critical component of current transformer, and due to environment for use particularity, claimed structure is compact, easy to maintenance, power density is high, so power cell is often designed to the separate unit of a perfect in shape and function.
In existing power cell structure, there is following defect: the quantity of the electrochemical capacitor that use electrochemical capacitor needs is huge, causes the huge structure of power model loose; Use thin-film capacitor because the volume and weight of thin-film capacitor is larger, existing IGBT module is structurally difficult to DC filtering thin-film capacitor and IGBT device to be installed together, cause between DC filtering thin-film capacitor and IGBT element stray inductance very large, easily produce excessive DC ripple electric current, DC filtering thin-film capacitor overload is damaged.And because the power density of present power model is very high, when using air-cooled design, be difficult to meet the heat radiation requirement of IGBT and DC filter capacitor simultaneously, thereby cause DC filter capacitor radiating effect undesirable, cause its life-span to be reduced, thereby affect the use of whole power cell.
Summary of the invention
For above the deficiencies in the prior art, the utility model proposes a kind of IGBT modular power cells, when meeting compact conformation, convenient for maintaining, solve the prior art defects such as the DC ripple electric current that existing power cell exists is excessive, the heat radiation of DC filtering thin-film capacitor is bad, the life-span is short, reduce manufacturing cost and the maintenance cost of IGBT modular power cells simultaneously.
The purpose of this utility model is achieved through the following technical solutions:
A kind of IGBT modular power cells, this power cell comprises liquid cooling heat exchanger, the first and second composite bus rows, the first and second IGBT (PCC) powers, described the first and second bus bars, the first and second IGBT (PCC) powers are the both sides that are arranged on liquid cooling heat exchanger of symmetry respectively.
Further, described power cell also comprises the holder that is arranged at described liquid cooling heat exchanger bottom and the liquid cooling heat exchanger fixture that is arranged at described liquid cooling heat exchanger top.
Further, a described IGBT (PCC) power comprises respectively IGBT module, the IGBT drive plate that connects IGBT module, exchange output copper bar, a plurality of DC filtering thin-film capacitors, the first composite bus bar, noninductive Absorption Capacitance, described IGBT module one side is disposed with described composite bus bar, IGBT drive plate, exchanges output copper bar, described IGBT module is connected with described composite bus bar, described noninductive Absorption Capacitance is arranged on described IGBT module and described composite bus bar link, and described DC filtering thin-film capacitor is arranged on the below of described composite bus bar.
Further, described the 2nd IGBT (PCC) power comprises respectively IGBT module, the IGBT drive plate that connects IGBT module, exchange output copper bar, a plurality of DC filtering thin-film capacitors, the second composite bus bar, noninductive Absorption Capacitance, described IGBT module one side is disposed with described composite bus bar, IGBT drive plate, exchanges output copper bar, described IGBT module is connected with described composite bus bar, described noninductive Absorption Capacitance is arranged on described IGBT module and described composite bus bar link, and described DC filtering thin-film capacitor is arranged on the below of described composite bus bar.
Further, the positive and negative level output of described composite bus bar is concordant with described liquid cooling heat exchanger rear side.
Further, described liquid cooling heat exchanger is tabular liquid cooling heat exchanger.
Further, above a described IGBT (PCC) power or around without sealing baffle.
The utility model has the advantage of:
The utility model IGBT modular power cells, has met the designing requirement of high power level, high power density, makes the equipment machine volume less, and cost is lower, and installing/dismounting is more convenient, has improved production efficiency; Structurally IGBT and DC filtering thin-film capacitor are close to and are arranged on tabular liquid cooling heat exchanger, solved the DC filtering thin-film capacitor bad problem of dispelling the heat, improved DC filtering thin-film capacitor useful life; Compact conformation, effectively reduces the stray inductance between DC filtering thin-film capacitor and IGBT module, and overvoltage is impacted when reducing IGBT and turn-offing, and has improved the reliability of IGBT.
Accompanying drawing explanation
Fig. 1: the front view that is a kind of embodiment of the utility model IGBT modular power cells.
Fig. 2: the stereogram of the utility model IGBT piece power cell Fig. 1 embodiment.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described, as shown in Figure 1, 2, IGBT modular power cells of the present utility model, comprises tabular liquid cooling heat exchanger 2, an IGBT (PCC) power 4, the 2nd IGBT (PCC) power 3, liquid cooling heat exchanger holder 1 and liquid cooling heat exchanger fixture 5; Wherein an IGBT assembly 4 comprises the IGBT drive plate 35 of IGBT module 31, connection IGBT module, exchanges output copper bar 36, DC filtering thin-film capacitor 33, the first composite bus bar 41, noninductive Absorption Capacitance 34; The 2nd IGBT assembly 3 comprises IGBT module 31, connects the IGBT drive plate 35 of IGBT module, exchanges output copper bar 36, DC filtering thin-film capacitor 33, the second composite bus bar 32, noninductive Absorption Capacitance 34;
In the present embodiment, tabular liquid cooling heat exchanger 2 is vertically arranged on liquid cooling heat exchanger holder 1, liquid cooling heat exchanger fixture 5 is installed on tabular liquid cooling heat exchanger 2 tops, and liquid cooling heat exchanger holder 1 and liquid cooling heat exchanger fixture 5 play location fixation in IGBT modular power cells.In other embodiments, can shift one's position according to the actual demand of structural design.
The one IGBT (PCC) power 4 is arranged on tabular liquid cooling heat exchanger 2 one sides, the 2nd IGBT (PCC) power 3 is arranged on tabular liquid cooling heat exchanger 2 opposite sides;
The first composite bus bar 41 in the one IGBT assembly 4, the IGBT drive plate 35 that connects described IGBT module 31, interchange output copper bar 36 are arranged on IGBT module 31 tops in order, noninductive Absorption Capacitance 34 is connected on IGBT module 31 and the first composite bus bar 41 links, DC filtering thin-film capacitor 33 is connected to the below link of the first composite bus bar 41, DC filtering thin-film capacitor 33 interface end are connected with the first composite bus bar 41 links, and DC filtering thin-film capacitor 33 bottom surfaces and shape liquid cooling heat exchanger 2 side surfaces are affixed and are fixedly connected on this shape liquid cooling heat exchanger.
The second composite bus bar 32 in the 2nd IGBT assembly 3, the IGBT drive plate 35 that connects IGBT module 31, interchange output copper bar 36 are arranged on described IGBT module 31 tops in order, noninductive Absorption Capacitance 34 is connected on IGBT module 31 and the second composite bus bar 32 links, DC filtering thin-film capacitor 33 is connected to the below link of the second composite bus bar 32, DC filtering thin-film capacitor 33 interface end are connected with the second composite bus bar 32 links, and DC filtering thin-film capacitor 33 bottom surfaces and shape liquid cooling heat exchanger 2 side surfaces are affixed and are fixedly connected on this shape liquid cooling heat exchanger.
In the present embodiment, DC filtering thin-film capacitor 33 bottom surfaces and shape liquid cooling heat exchanger 2 side surfaces are affixed and are fixedly connected on this shape liquid cooling heat exchanger, be conducive to 33 heat radiations of DC filtering thin-film capacitor, in other embodiments, DC filtering thin-film capacitor 33 can change electrochemical capacitor or change DC filtering thin-film capacitor 33 quantity and installation site into, also can realize the object of the invention.
In the present embodiment, noninductive Absorption Capacitance 34 is connected on IGBT module 31 and composite bus bar link, and effect is to reduce IGBT module 31 due to voltage spikes values, guarantees IGBT module 31 work safetys.
Should be appreciated that the above detailed description of technical scheme of the present invention being carried out by preferred embodiment is illustrative and not restrictive.Those of ordinary skill in the art modifies reading the technical scheme that can record each embodiment on the basis of specification of the present invention, or part technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (7)
1. an IGBT modular power cells, it is characterized in that, this power cell comprises liquid cooling heat exchanger, the first and second composite bus rows, the first and second IGBT (PCC) powers, described the first and second bus bars, the first and second IGBT (PCC) powers are the both sides that are arranged on liquid cooling heat exchanger of symmetry respectively.
2. a kind of IGBT modular power cells according to claim 1, is characterized in that, described power cell also comprises the holder that is arranged at described liquid cooling heat exchanger bottom and the liquid cooling heat exchanger fixture that is arranged at described liquid cooling heat exchanger top.
3. a kind of IGBT modular power cells according to claim 2, it is characterized in that, a described IGBT (PCC) power comprises respectively IGBT module, the IGBT drive plate that connects IGBT module, exchange output copper bar, a plurality of DC filtering thin-film capacitors, the first composite bus bar, noninductive Absorption Capacitance, described IGBT module one side is disposed with described composite bus bar, IGBT drive plate, exchange output copper bar, described IGBT module is connected with described composite bus bar, described noninductive Absorption Capacitance is arranged on described IGBT module and described composite bus bar link, described DC filtering thin-film capacitor is arranged on the below of described composite bus bar.
4. a kind of IGBT modular power cells according to claim 2, it is characterized in that, described the 2nd IGBT (PCC) power comprises respectively IGBT module, the IGBT drive plate that connects IGBT module, exchange output copper bar, a plurality of DC filtering thin-film capacitors, the second composite bus bar, noninductive Absorption Capacitance, described IGBT module one side is disposed with described composite bus bar, IGBT drive plate, exchange output copper bar, described IGBT module is connected with described composite bus bar, described noninductive Absorption Capacitance is arranged on described IGBT module and described composite bus bar link, described DC filtering thin-film capacitor is arranged on the below of described composite bus bar.
5. according to a kind of IGBT modular power cells described in claim 3 or 4, it is characterized in that, the positive and negative level output of described composite bus bar is concordant with described liquid cooling heat exchanger rear side.
6. according to a kind of IGBT modular power cells described in claim 3 or 4, it is characterized in that, described liquid cooling heat exchanger is tabular liquid cooling heat exchanger.
7. according to a kind of IGBT modular power cells described in claim 3 or 4, it is characterized in that, above a described IGBT (PCC) power or around without sealing baffle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320509753.6U CN203434874U (en) | 2013-08-20 | 2013-08-20 | Igbt module power unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320509753.6U CN203434874U (en) | 2013-08-20 | 2013-08-20 | Igbt module power unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203434874U true CN203434874U (en) | 2014-02-12 |
Family
ID=50063888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320509753.6U Expired - Lifetime CN203434874U (en) | 2013-08-20 | 2013-08-20 | Igbt module power unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203434874U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956885A (en) * | 2014-04-24 | 2014-07-30 | 江苏大全箱变科技有限公司 | Compact power unit of wind power converter |
-
2013
- 2013-08-20 CN CN201320509753.6U patent/CN203434874U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103956885A (en) * | 2014-04-24 | 2014-07-30 | 江苏大全箱变科技有限公司 | Compact power unit of wind power converter |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140212 |