CN203504394U - Composite busbar for paralleled IGBT - Google Patents
Composite busbar for paralleled IGBT Download PDFInfo
- Publication number
- CN203504394U CN203504394U CN201320664919.1U CN201320664919U CN203504394U CN 203504394 U CN203504394 U CN 203504394U CN 201320664919 U CN201320664919 U CN 201320664919U CN 203504394 U CN203504394 U CN 203504394U
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- Prior art keywords
- conductor layer
- insulating barrier
- bus bar
- plate conductor
- composite bus
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- 239000002131 composite material Substances 0.000 title claims abstract description 64
- 239000004020 conductor Substances 0.000 claims abstract description 79
- 238000009413 insulation Methods 0.000 claims abstract description 35
- 230000004888 barrier function Effects 0.000 claims description 62
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 13
- 229910052802 copper Inorganic materials 0.000 claims description 13
- 239000010949 copper Substances 0.000 claims description 13
- 238000012545 processing Methods 0.000 claims description 10
- 239000003990 capacitor Substances 0.000 claims description 8
- 238000007731 hot pressing Methods 0.000 claims description 8
- 238000012856 packing Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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Abstract
The utility model relates to a composite busbar for paralleled IGBTs; the composite busbar is formed by stacking an insulation layer, a conductor layer and an insulation plate; the conductor layer comprises an AC output pole plate conductor layer, an anode plate conductor layer and a cathode plate conductor layer; a current output end side of the AC output pole plate conductor layer and the cathode plate conductor layer is provided with a long groove. The composite busbar changes the current path on the busbar, thereby preventing current unbalanced problem of the paralleled IGBT modules.
Description
Technical field:
The utility model relates to a kind of composite bus bar, more specifically relates to a kind of composite bus bar of the IGBT of being applicable to parallel connection.
Background technology:
Composite bus bar and traditional discrete busbar all can be used as the electric connecting part between power model, yet traditional busbar stray inductance amount is excessive, and the transient voltage producing at switching device shutdown moment and the stack of DC loop voltage, constitute a threat to switching device.Distributed inductance amount is larger, and load current is larger, and the downslope time of switching device is shorter, and this harm is just more serious, and this harm can not disappear because of the selection of switching device.In order to eliminate this harm, people more and more adopt composite bus bar technology.
The advantage of composite bus bar is:
1 low distributed inductance, low inductor design, the positive negative conductor of the same circuit presses together, and distributed inductance is cancelled out each other, and the air-tight manner of installing hole strengthens creepage distance simultaneously, reduces inductance.The induction high-voltage breakdown components and parts that form on laminated bus bar while preventing device for power switching switch, reduce or save Absorption Capacitance, allow power component give play to maximum effect.
2 low partial discharge rates, partial discharge refers to the inner local leaky producing of insulation.The main cause of partial discharge is to have air gap between interior insulation between different electric pressures and copper coin, and its consequence can cause insulation quick aging, and may cause needs repeatedly to change busbar in the whole lifetime of equipment, and after service cost significantly improves.After sticking with glue agent hot pressing between the insulating barrier of composite bus bar and copper coin, fit completely, without any air gap, insulation life greatly extends, and can accomplish in whole current transformer use procedure non-maintaining.
Composite bus bar, as the electric connecting part between power model, generally adopts whole busbar that the parts such as DC capacitor, IGBT are coupled together.When realizing high-power converter, be subject to the restriction of current power capacity of semiconductor devices, need to adopt a plurality of IGBT modules in parallel; If still adopt conventional composite bus bar to connect, exchange the lead-in inductance skewness between output board and a plurality of parallel IGBT module, cause parallel IGBT module current-unbalance, when serious, can cause the damage of IGBT module.
Utility model content:
The purpose of this utility model is to provide a kind of composite bus bar of the IGBT of being applicable to parallel connection, and this composite bus bar has changed the path of electric current on busbar, has avoided the problem of parallel IGBT module current-unbalance.
For achieving the above object, the utility model is by the following technical solutions: a kind of composite bus bar that is applicable to IGBT parallel connection, described composite bus bar is formed by stacking by insulating barrier, conductor layer and insulation board, described conductor layer comprises exchanging exports pole plate conductor layer, positive plate conductor layer and negative plate conductor layer, and current output terminal one side of described interchange output pole plate conductor layer and negative plate conductor layer is provided with elongated slot.
The composite bus bar of a kind of IGBT of being applicable to parallel connection that the utility model provides, described insulating barrier comprises that being separately positioned on described interchange exports pole plate conductor layer upper and lower insulating barrier one and insulating barrier two, is separately positioned on the upper and lower insulating barrier three of described positive plate conductor layer and insulating barrier four, is separately positioned on the upper and lower insulating barrier five of described negative plate conductor layer and insulating barrier six.
The composite bus bar of a kind of IGBT of being applicable to parallel connection that the utility model provides, described insulation board comprises the insulation board one and the insulation board two that is connected described insulating barrier four and insulating barrier five that connects described insulating barrier two and insulating barrier three.
The composite bus bar of another the preferred a kind of IGBT of being applicable to parallel connection that the utility model provides, described elongated slot is rectangle.
The composite bus bar of the preferred a kind of IGBT of a being applicable to parallel connection again that the utility model provides, described elongated slot length is 300mm, width is 50mm.
The composite bus bar of the another preferred a kind of IGBT of being applicable to parallel connection that the utility model provides, described conductor layer comprises copper coin and is arranged on the copper packing on described copper coin by welding.
The composite bus bar of the another preferred a kind of IGBT of being applicable to parallel connection that the utility model provides, described composite bus bar is provided with the instrument connection that runs through described conductor layer, insulating barrier and insulation board.
The composite bus bar of the another preferred a kind of IGBT of being applicable to parallel connection that the utility model provides, described composite bus bar is according to insulating barrier one, the order that exchanges output pole plate conductor layer, insulating barrier two, insulation board one, insulating barrier three, positive plate conductor layer, insulating barrier four, insulation board two, insulating barrier five, negative plate conductor layer and insulating barrier six successively on mould successively closed assembly get up; Composite bus bar after closed assembly carries out hot-pressing processing; After hot-pressing processing completes, described composite bus bar edge is carried out to pressing sealing insulation processing.
The composite bus bar of the another preferred a kind of IGBT of being applicable to parallel connection that the utility model provides, described interchange output pole plate conductor layer connects manages IGBT emitter and lower pipe IGBT collector electrode on half brachium pontis, and can connect with adjacent power model; On the positive pole of described positive plate conductor layer connection direct current capacitor and half brachium pontis, manage the collector electrode of IGBT; Negative plate conductor layer connects under the negative pole of described direct current capacitor and half brachium pontis manages the emitter of IGBT, and connects with adjacent power model.
The composite bus bar of the another preferred a kind of IGBT of being applicable to parallel connection that the utility model provides, described positive plate conductor layer and described negative plate conductor layer Parallel Symmetric arrange.
With immediate prior art ratio, the utility model provides technical scheme to have following excellent effect
1, the composite bus bar in the utility model has been changed shape, and lead-in inductance is evenly distributed, and the current-sharing of IGBT is effective;
2, closed assembly and the insulation layer by layer of the composite bus bar in the utility model is separated by, and the AC and DC signal of telecommunication transmits simultaneously, and service efficiency is higher;
3, the positive and negative pole plate conductor layer in the utility model is the adjacent conductive layers being arranged in parallel, and effectively eliminates mutual inductance, reduces stray inductance, improves power device reliability of operation;
4, conductor layer of the present utility model and insulating barrier are combined with each other by hot pressing technology, have significantly promoted the bulk strength of conductive plate, make busbar impact resistance stronger, and reliability is higher;
5, the composite bus bar edge pressing sealing in the utility model is processed, and partial discharge value is less;
6, the composite bus bar compact conformation in the utility model, installation effectiveness is high, long service life;
7, the upper and lower surface of all conductor layers in the utility model is coated by insulating barrier; Isolated by insulation board between adjacent conductive layers, improve dielectric voltage withstand level.
Accompanying drawing explanation:
Fig. 1 is the utility model composite bus bar stereochemical structure structural representation;
Fig. 2 is the utility model composite bus bar vertical view;
Fig. 3 is the IGBT parallel-current path schematic diagram of the utility model on composite bus bar;
Fig. 4 is the IGBT connection diagram of composite bus bar parallel connection of the present utility model;
Wherein, 1-insulating barrier one, 2-exchanges output pole plate conductor layer, 3-insulating barrier two, 4-insulation board one, 5-insulating barrier three, 6-positive plate conductor layer, 7-insulating barrier four, 8-insulation board two, 9-insulating barrier five, 10-negative plate conductor layer, 11-insulating barrier six, 12-elongated slot.
Embodiment:
Below in conjunction with embodiment, utility model is described in further detail.
Embodiment 1:
As Figure 1-4, the composite bus bar of the utility model that this is routine is comprised of conductor layer, insulating barrier, the insulation board of a plurality of mutual stacks, and composite bus bar comprises insulating barrier 1, interchange output pole plate conductor layer 2, insulating barrier 23, insulation board 1, insulating barrier 35, positive plate conductor layer 6, insulating barrier 47, insulation board 28, insulating barrier 59, negative plate conductor layer 10 and the insulating barrier 6 11 arranging from top to bottom successively.Described composite bus bar is according to insulating barrier 1, the order that exchanges output pole plate conductor layer 2, insulating barrier 23, insulation board 1, insulating barrier 35, positive plate conductor layer 6, insulating barrier 47, insulation board 28, insulating barrier 59, negative plate conductor layer 10 and insulating barrier 6 11 successively on mould successively closed assembly get up; Composite bus bar after closed assembly carries out hot-pressing processing; After hot-pressing processing completes, described composite bus bar edge is carried out to pressing sealing insulation processing.
Current output terminal one side of described interchange output pole plate conductor layer 1 and negative plate conductor layer 10 is provided with elongated slot 12.Described elongated slot 12 is rectangle.The length of elongated slot described in the present embodiment is 300mm, and width is 50mm.
Described composite bus bar conductor layer comprises copper coin and is arranged on the copper packing on described copper coin by welding, and described copper coin and copper packing conductive surface carry out the zinc-plated processing of passivation; Described insulating barrier adopts dielectric strength, polyethylene terephtalate material that thermal endurance class is high, can effectively reduce the thickness of described composite bus bar.
Described positive plate conductor layer 6 and negative plate conductor layer 10 symmetrical configuration, be to be arranged in parallel in adjacent conductor layer, is conducive to eliminate the mutual inductance between busbar, makes inductance value lower, effectively reduces peak voltage.
On described composite bus bar, be provided with the instrument connection that runs through described conductor layer, insulating barrier and insulation board, to facilitate the driving signal of monitoring IGBT.
Described interchange output pole plate conductor layer 2 is arranged in the top of described composite bus bar, it is as half brachium pontis mid point exit, lead-in inductance skewness for fear of IGBT and output, elongated slot is set to change the shape of whole composite bus bar thereon, thereby change current path, each parallel IGBT and the lead-in inductance of output pole plate are evenly distributed, guarantee the current-sharing effect of parallel IGBT.
Described positive plate conductor layer 6 is arranged in the below that exchanges output pole plate, and is provided with insulation board with exchanging to export between pole plate conductor layer 2.
Described negative plate conductor layer 10 is arranged in the below of positive plate conductor layer 6, and centre is provided with insulation board.Also be to exchange output pole plate, can be connected in series with adjacent power module simultaneously.Identical with described interchange output pole plate conductor layer 2, for fear of the lead-in inductance skewness of each IGBT and output, elongated slot is also set with the shape of change negative plate conductor layer 10 thereon, thereby changes current path, guarantee the current-sharing effect of parallel IGBT.
Described composite bus bar is as the electric connecting part between power model, be used for connecting the parts such as direct current capacitor, IGBT device, exchange output pole plate conductor layer 12, as half brachium pontis mid point exit, connect and on half brachium pontis, manage IGBT emitter and lower pipe IGBT collector electrode, and can connect with adjacent power model; On the positive pole of positive plate conductor layer 6 connection direct current capacitors and half brachium pontis, manage the collector electrode of IGBT; Negative plate conductor layer 10 is also that another exchanges output pole plate conductor layer, manages the emitter of IGBT, and can connect with adjacent power model under the negative pole of connection direct current capacitor and half brachium pontis.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit, although the utility model is had been described in detail with reference to above-described embodiment, those of ordinary skill in the field are to be understood that: still can modify or be equal to replacement embodiment of the present utility model, and do not depart from any modification of the utility model spirit and scope or be equal to replacement, it all should be encompassed in the middle of this claim scope.
Claims (10)
1. a composite bus bar that is applicable to IGBT parallel connection, described composite bus bar is formed by stacking by insulating barrier, conductor layer and insulation board, it is characterized in that: described conductor layer comprises exchanging exports pole plate conductor layer, positive plate conductor layer and negative plate conductor layer, and current output terminal one side of described interchange output pole plate conductor layer and negative plate conductor layer is provided with elongated slot.
2. a kind of composite bus bar that is applicable to IGBT parallel connection as claimed in claim 1, is characterized in that: described insulating barrier comprises that being separately positioned on described interchange exports pole plate conductor layer upper and lower insulating barrier one and insulating barrier two, is separately positioned on the upper and lower insulating barrier three of described positive plate conductor layer and insulating barrier four, is separately positioned on the upper and lower insulating barrier five of described negative plate conductor layer and insulating barrier six.
3. a kind of composite bus bar that is applicable to IGBT parallel connection as claimed in claim 2, is characterized in that: described insulation board comprises the insulation board one and the insulation board two that is connected described insulating barrier four and insulating barrier five that connects described insulating barrier two and insulating barrier three.
4. a kind of composite bus bar that is applicable to IGBT parallel connection as claimed in claim 1, is characterized in that: described elongated slot is rectangle.
5. a kind of composite bus bar that is applicable to IGBT parallel connection as claimed in claim 4, is characterized in that: described elongated slot length is 300mm, and width is 50mm.
6. a kind of composite bus bar that is applicable to IGBT parallel connection as claimed in claim 1 or 2, is characterized in that: described conductor layer comprises copper coin and is arranged on the copper packing on described copper coin by welding.
7. a kind of composite bus bar that is applicable to IGBT parallel connection as claimed in claim 1, is characterized in that: described composite bus bar is provided with the instrument connection that runs through described conductor layer, insulating barrier and insulation board.
8. a kind of composite bus bar that is applicable to IGBT parallel connection as claimed in claim 3, it is characterized in that: described composite bus bar is according to insulating barrier one, the order that exchanges output pole plate conductor layer, insulating barrier two, insulation board one, insulating barrier three, positive plate conductor layer, insulating barrier four, insulation board two, insulating barrier five, negative plate conductor layer and insulating barrier six successively on mould successively closed assembly get up; Composite bus bar after closed assembly carries out hot-pressing processing; After hot-pressing processing completes, described composite bus bar edge is carried out to pressing sealing insulation processing.
9. a kind of composite bus bar that is applicable to IGBT parallel connection as claimed in claim 1 or 2, is characterized in that: described interchange output pole plate conductor layer connects manages IGBT emitter and lower pipe IGBT collector electrode on half brachium pontis, and can connect with adjacent power model; On the positive pole of described positive plate conductor layer connection direct current capacitor and half brachium pontis, manage the collector electrode of IGBT; Negative plate conductor layer connects under the negative pole of described direct current capacitor and half brachium pontis manages the emitter of IGBT, and connects with adjacent power model.
10. a kind of composite bus bar that is applicable to IGBT parallel connection as described in claim 1-3 any one, is characterized in that: described positive plate conductor layer and described negative plate conductor layer Parallel Symmetric arrange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320664919.1U CN203504394U (en) | 2013-10-25 | 2013-10-25 | Composite busbar for paralleled IGBT |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320664919.1U CN203504394U (en) | 2013-10-25 | 2013-10-25 | Composite busbar for paralleled IGBT |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203504394U true CN203504394U (en) | 2014-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320664919.1U Expired - Fee Related CN203504394U (en) | 2013-10-25 | 2013-10-25 | Composite busbar for paralleled IGBT |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203504394U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104022414A (en) * | 2014-05-22 | 2014-09-03 | 苏州西典机电有限公司 | Novel laminated busbar |
| CN104578708A (en) * | 2013-10-25 | 2015-04-29 | 国家电网公司 | Combined busbar applied to parallel connection of IGBTs |
| CN105322484A (en) * | 2015-12-08 | 2016-02-10 | 华中科技大学 | Laminated busbar for high-voltage solid-state electric-electronic switch |
| CN106736295A (en) * | 2016-12-29 | 2017-05-31 | 山东诺维科轻量化装备有限公司 | A kind of precision machining method of nuclear power main body busbar |
| EP3599675A1 (en) | 2018-07-26 | 2020-01-29 | Rogers BVBA | Busbar and method for manufacturing a busbar |
| EP3654742A1 (en) | 2018-11-14 | 2020-05-20 | Rogers BVBA | Method for manufacturing a busbar and such a busbar |
| EP3916918A1 (en) | 2020-05-26 | 2021-12-01 | Rogers BV | Method for forming a connection between a busbar and a contact section, a busbar having a contact section and power distribution system having such busbar |
| EP4057785A1 (en) | 2021-03-10 | 2022-09-14 | Rogers BV | Busbar and method for manufacturing a busbar |
| EP4094878A1 (en) | 2021-05-27 | 2022-11-30 | Rogers BV | Method for forming a busbar having a contact section, busbar having a contact section and power distribution system having such a busbar |
| EP4094877A1 (en) | 2021-05-27 | 2022-11-30 | Rogers BV | Method for forming a busbar having a contact element, a busbar having a contact element and power distribution system having such a busbar |
| EP4336675A1 (en) | 2022-09-09 | 2024-03-13 | Rogers BV | Busbar, method for manufacturing a busbar and method for connecting an electronic component to the busbar |
-
2013
- 2013-10-25 CN CN201320664919.1U patent/CN203504394U/en not_active Expired - Fee Related
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104578708A (en) * | 2013-10-25 | 2015-04-29 | 国家电网公司 | Combined busbar applied to parallel connection of IGBTs |
| CN104578708B (en) * | 2013-10-25 | 2018-03-16 | 国家电网公司 | A kind of composite bus bar in parallel suitable for IGBT |
| CN104022414B (en) * | 2014-05-22 | 2016-08-31 | 苏州西典机电有限公司 | A kind of stack bus bar |
| CN104022414A (en) * | 2014-05-22 | 2014-09-03 | 苏州西典机电有限公司 | Novel laminated busbar |
| CN105322484A (en) * | 2015-12-08 | 2016-02-10 | 华中科技大学 | Laminated busbar for high-voltage solid-state electric-electronic switch |
| CN106736295A (en) * | 2016-12-29 | 2017-05-31 | 山东诺维科轻量化装备有限公司 | A kind of precision machining method of nuclear power main body busbar |
| EP3599675A1 (en) | 2018-07-26 | 2020-01-29 | Rogers BVBA | Busbar and method for manufacturing a busbar |
| EP3599676A1 (en) | 2018-07-26 | 2020-01-29 | Rogers BVBA | Method for connecting an electrical component to a busbar, superflat busbar and a system realized by such a method |
| US12062898B2 (en) | 2018-11-14 | 2024-08-13 | Rogers Bv | Method for manufacturing a busbar and such a busbar |
| EP3654742A1 (en) | 2018-11-14 | 2020-05-20 | Rogers BVBA | Method for manufacturing a busbar and such a busbar |
| WO2020098979A1 (en) | 2018-11-14 | 2020-05-22 | Rogers Bvba | Method for manufacturing a busbar and such a busbar |
| EP3916918A1 (en) | 2020-05-26 | 2021-12-01 | Rogers BV | Method for forming a connection between a busbar and a contact section, a busbar having a contact section and power distribution system having such busbar |
| WO2021239288A1 (en) | 2020-05-26 | 2021-12-02 | Rogers Bv | Method for forming a connection between a busbar and a contact section, a busbar having a contact section and power distribution system having such busbar |
| EP4057785A1 (en) | 2021-03-10 | 2022-09-14 | Rogers BV | Busbar and method for manufacturing a busbar |
| EP4094878A1 (en) | 2021-05-27 | 2022-11-30 | Rogers BV | Method for forming a busbar having a contact section, busbar having a contact section and power distribution system having such a busbar |
| EP4094877A1 (en) | 2021-05-27 | 2022-11-30 | Rogers BV | Method for forming a busbar having a contact element, a busbar having a contact element and power distribution system having such a busbar |
| WO2022248200A1 (en) | 2021-05-27 | 2022-12-01 | Rogers Bv | Method for forming a busbar having a contact section, busbar having a contact section and power distribution system having such a busbar |
| WO2022248201A1 (en) | 2021-05-27 | 2022-12-01 | Rogers Bv | Method for forming a busbar having a contact element, a busbar having a contact element and power distribution system having such a busbar |
| EP4336675A1 (en) | 2022-09-09 | 2024-03-13 | Rogers BV | Busbar, method for manufacturing a busbar and method for connecting an electronic component to the busbar |
| WO2024052547A1 (en) | 2022-09-09 | 2024-03-14 | Rogers Bv | Busbar, method for manufacturing a busbar and method for connecting an electronic component to the busbar |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170602 Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee after: China Electric Prime Technology Co., Ltd. Patentee after: State Grid Corporation of China Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee before: State Grid Smart Grid Institute Patentee before: State Grid Corporation of China Co-patentee before: China Electric Prime Technology Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140326 Termination date: 20181025 |