CN104767400B - The split type composite bus bar of L-type - Google Patents
The split type composite bus bar of L-type Download PDFInfo
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- CN104767400B CN104767400B CN201510192920.2A CN201510192920A CN104767400B CN 104767400 B CN104767400 B CN 104767400B CN 201510192920 A CN201510192920 A CN 201510192920A CN 104767400 B CN104767400 B CN 104767400B
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- bus bar
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- busbar
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Abstract
The present invention relates to the busbar field of electrical technology, the split type composite bus bar of specifically a kind of L-type, including the lower split composite bus bar that three layers of L-type busbar stack composition in the same direction, two-layer flat busbar stacks the upper split composite bus bar of composition, insulant is filled between adjacent busbar, the lower split composite bus bar is provided with for connecting the interface of circuit devcie, draws AC output terminal on wherein one layer L-type busbar of lower split composite bus bar.The split type composite bus bar of L-type of the present invention, instead of dc bus, reduce loop inductance, improve the reliability of IGBT work；Main circuit cable connection is instead of, layout is simple, and quality is more reliable；Reduce the volume and weight of system, convenient maintenance and maintenance to main circuit.
Description
Technical field
The present invention relates to the busbar field of electrical technology, the split type composite bus bar of specifically a kind of L-type.
Background technology
The power device of high power frequency conversion power supply in switching process, due to from DC energy storage electric capacity between IGBT device
The impact of stray inductance and IGBT module own inductance on dc bus, can produce very high peak voltage, this spike electricity
Pressure, device can be made overheated, or even make sometimes IGBT out of control and the load rated safety working area more than device and damage.
It is, therefore, necessary to the peak voltage produced in switching process is limited in allowed band, one of method is exactly to reduce
The distributed inductance of DC loop power generatrix.
Content of the invention
The present invention is in order to solve above-mentioned technical problem, there is provided a kind of split type composite bus bar of L-type.
The present invention is achieved by the following technical solutions：The split type composite bus bar of L-type, in the same direction including three layers of L-type busbar
The lower split composite bus bar of composition is stacked, two-layer flat busbar stacks the upper split composite bus bar of composition, between adjacent busbar
It is filled with insulant, the lower split composite bus bar is provided with for connecting the interface of circuit devcie, lower split composite bus bar
Wherein one layer L-type busbar on draw AC output terminal, on wherein one layer flat busbar of upper split composite bus bar draw
For being input into the positive terminal of forward dc voltage, draw on another layer of flat busbar of upper split composite bus bar for exporting
The negative sense terminal of negative DC voltage, the two-layer flat busbar of upper split composite bus bar are connected to down by bonding terminal
On other two-layer L-type busbars of split composite bus bar.
The split type composite bus bar of L-type of the present invention, instead of dc bus, reduces loop inductance, improves IGBT
The reliability of work；Main circuit cable connection is instead of, layout is simple, and quality is more reliable；The volume and weight of system is reduced,
Convenient maintenance and maintenance to main circuit.
Description of the drawings
Fig. 1 is the dimensional structure diagram of the split type composite bus bar of L-type of the present invention.
Side views of the Fig. 2 for Fig. 1.
Fig. 3 is the connection diagram of upper split composite bus bar and lower split composite bus bar.
Circuit theory diagrams of the Fig. 4 for EMUs auxiliary inversion power model.
In figure：The upper split composite bus bars of 1-, 2- interfaces, 3- AC output terminals, 4- forward direction terminals, 5- negative sense terminals, 6-
Connecting portion, split composite bus bar under 7-.
Specific embodiment
The split type composite bus bar of L-type, including the lower split composite bus bar 7 that three layers of L-type busbar stack composition in the same direction, two-layer is flat
Flat-shaped busbar stacks the upper split composite bus bar 1 of composition, is filled with insulant, the compound mother of the lower split between adjacent busbar
Row 7 is provided with for connecting the interface 2 of circuit devcie, draws exchange defeated on wherein one layer L-type busbar of lower split composite bus bar 7
Go out terminal 3, draw on wherein one layer flat busbar of upper split composite bus bar 1 for being input into the forward end of forward dc voltage
Son 4, draws on another layer of flat busbar of upper split composite bus bar 1 for exporting the negative sense terminal 5 of negative DC voltage, on
The two-layer flat busbar of split composite bus bar 1 is connected to other two-layers L of lower split composite bus bar 7 by bonding terminal
On type busbar.
In order that the present invention is preferably understood, it is further provided a kind of EMUs auxiliary inversion power model, the mother
Row is can be applicable in power model as shown in Figure 4.
Referring to Fig. 2, from top to bottom see, the ground floor L-type busbar of the lower split composite bus bar 7 of the present invention draws downwards three friendships
Stream lead-out terminal 3（U、V、W）, second layer L-type busbar is connected to by bonding terminal on the ground floor of upper split composite bus bar 1,
Third layer L-type busbar is connected to by bonding terminal on the second layer of upper split composite bus bar 1, and the of upper split composite bus bar 1
One layer of upper extraction is used for exporting negative DC voltage（DC-）Two negative sense terminals 5, on the second layer of upper split composite bus bar 1
Draw for being input into forward dc voltage（DC+）Two positive terminals 4.It is multiple that the AC output terminal 3 is arranged at lower split
The minor face side of busbar 7 is closed, and the long side side of lower split composite bus bar 7 is arranged at for connecting the interface 2 of circuit devcie.Described
Its minor face side of L-type busbar for drawing AC output terminal 3 is shorter than other two-layer L-type busbars.
The interface 2 of the split type composite bus bar of L-type of the present invention achieves IGBT three-phase inversions master in the power model
Circuit（H1～H3, B1～B3）, absorbing circuit（C1、C2、C3、R）, Support Capacitor（FC）Connection.High-pressure section is by compound
Busbar achieves electrical connection, and the version for being laminated parallel distribution by both positive and negative polarity reduces circuit distributed inductance, so as to reduce
The peak-inverse voltage at power component two ends, reduces requirement of the power device to voltage protection absorbing circuit, improves power device
Reliability of operation and stability, while improve the integrated level of circuit, are easy to maintenance maintenance.The split type composite bus bar of L-type
Structure design achieves the split type installation of Support Capacitor and power model, it is to avoid Support Capacitor and power model integral type are hung
Pressure of the dress to radiator, reduces the gross weight of module, while convenient installation is safeguarded.
Referring to Fig. 3, the bonding terminal is two L-shaped connecting portions 6, and two connecting portions 6 are connected to
On upper split composite bus bar 1 and lower split composite bus bar 7, it is connected between the another side of two connecting portions 6.Said structure is taken
The mode of connecing can control inductance within 50nH.
On every layer of busbar, covering has mylar, then between layers with insulant be spaced, compacting encapsulation and
Into.From insulant preferably with composite bus bar can be made to be operated in -40 DEG C～+75 DEG C, be stored in -40 DEG C～+85 DEG C
In environment.
Claims (5)
- The split type composite bus bar of 1.L types, it is characterised in that the lower split for stacking composition in the same direction including three layers of L-type busbar is compound female Row（7）, two-layer flat busbar stacks the upper split composite bus bar of composition（1）, between adjacent busbar, it is filled with insulant, institute State lower split composite bus bar（7）It is provided with for connecting the interface of circuit devcie（2）, lower split composite bus bar（7）Wherein one AC output terminal is drawn on layer L-type busbar（3）, upper split composite bus bar（1）Wherein one layer flat busbar on draw use Positive terminal in input forward dc voltage（4）, upper split composite bus bar（1）Another layer of flat busbar on draw and be used for The negative sense terminal of output negative DC voltage（5）, upper split composite bus bar（1）Two-layer flat busbar by bonding terminal point Lower split composite bus bar is not connected to（7）Other two-layer L-type busbars on.
- 2. the split type composite bus bar of L-type according to claim 1, it is characterised in that the AC output terminal（3）Arrange In lower split composite bus bar（7）Minor face side, for connecting the interface of circuit devcie（2）It is arranged at lower split composite bus bar （7）Long side side.
- 3. the split type composite bus bar of L-type according to claim 1 and 2, it is characterised in that the extraction AC output terminal （3）Its minor face side of L-type busbar be shorter than other two-layer L-type busbars.
- 4. the split type composite bus bar of L-type according to claim 3, it is characterised in that the bonding terminal be two L-shaped Connecting portion（6）, two connecting portions（6）In a connecting portion（6）One side be connected to split composite bus bar（1）, two Connecting portion（6）In another connecting portion（6）One side be connected to lower split composite bus bar（7）, two connecting portions（6）Another It is connected between side.
- 5. the split type composite bus bar of L-type according to claim 4, it is characterised in that covering has poly- on every layer of busbar Ester film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510192920.2A CN104767400B (en) | 2015-04-22 | 2015-04-22 | The split type composite bus bar of L-type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510192920.2A CN104767400B (en) | 2015-04-22 | 2015-04-22 | The split type composite bus bar of L-type |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104767400A CN104767400A (en) | 2015-07-08 |
| CN104767400B true CN104767400B (en) | 2017-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510192920.2A Active CN104767400B (en) | 2015-04-22 | 2015-04-22 | The split type composite bus bar of L-type |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105119467B (en) * | 2015-08-28 | 2018-07-17 | 洛阳中重自动化工程有限责任公司 | A kind of the explosion-proof frequency converter vertical composite bus bars of multi-parallel IGBT and method |
| CN105098531B (en) * | 2015-09-23 | 2018-04-27 | 上海电科电器科技有限公司 | The connector of switch |
| US10541403B2 (en) * | 2016-10-14 | 2020-01-21 | Tiveni Mergeco, Inc. | Cylindrical battery cell configured with insulation component, and battery module containing the same |
| CN107370395B (en) * | 2017-08-15 | 2020-08-21 | 中车永济电机有限公司 | Traction power module composite busbar compatible with rectification and inversion functions |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5672070A (en) * | 1993-02-23 | 1997-09-30 | Siemens Aktiengesellschaft | Plug connection for two pairs of busbars |
| CN102904459A (en) * | 2011-07-25 | 2013-01-30 | 株式会社日立制作所 | Power conversion device |
| CN102969908A (en) * | 2011-09-01 | 2013-03-13 | 周旺龙 | Capacitor unit combined structure for inverters of electric vehicles |
| CN103915738A (en) * | 2013-01-07 | 2014-07-09 | 永济新时速电机电器有限责任公司 | Composite busbar and three-phase inverter circuit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014082274A (en) * | 2012-10-15 | 2014-05-08 | Toyota Industries Corp | Semiconductor device |
-
2015
- 2015-04-22 CN CN201510192920.2A patent/CN104767400B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5672070A (en) * | 1993-02-23 | 1997-09-30 | Siemens Aktiengesellschaft | Plug connection for two pairs of busbars |
| CN102904459A (en) * | 2011-07-25 | 2013-01-30 | 株式会社日立制作所 | Power conversion device |
| CN102969908A (en) * | 2011-09-01 | 2013-03-13 | 周旺龙 | Capacitor unit combined structure for inverters of electric vehicles |
| CN103915738A (en) * | 2013-01-07 | 2014-07-09 | 永济新时速电机电器有限责任公司 | Composite busbar and three-phase inverter circuit |
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| CN104767400A (en) | 2015-07-08 |
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Address after: 044500 Yongji City, Shanxi Province, the city of motor street, No. 18, No. Patentee after: CRRC YONGJI ELECTRIC CO., LTD. Address before: 044502 Yongji City, Shanxi Province, the city of motor street, No. 18, No. Patentee before: Yongji Xinshisu Motor Electrical Appliance Co., Ltd. |