CN204046443U - Three phase exports composite bus bar - Google Patents
Three phase exports composite bus bar Download PDFInfo
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- CN204046443U CN204046443U CN201420507999.4U CN201420507999U CN204046443U CN 204046443 U CN204046443 U CN 204046443U CN 201420507999 U CN201420507999 U CN 201420507999U CN 204046443 U CN204046443 U CN 204046443U
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- copper bar
- connecting hole
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Abstract
The utility model relates to AuCT interconnection technique, is specially a kind of Three phase and exports composite bus bar.Solve at present for drawing the technical problem that output busbar loop stray inductance is large, installation is inconvenient and design cost is high of AuCT.A kind of Three phase exports composite bus bar, comprises from bottom to top stacked setting, surface and all adopts hot compress process and T, S, R tri-layers of copper bar of successively decreasing of length; Copper bar thickness is 2mm, copper bar surface electrolytic tinning, tin thickness 5-15 micron; Every layer of copper bar surface adopts electrostatic painting process spraying molding powder, and the thickness of molding powder is less than 0.8mm; Polyester film is stained with between adjacent copper bar; Described T, S, R tri-layers of copper bar are all by one end consistency from top to bottom.The three-phase that the utility model adopts novel hot compress and lamination to combine exports composite bus bar replacement cable, copper bar, hot compress mother or laminated composite bus bar row and is electrically connected, decrease the numerous and diverse of wiring in the past, make layout simple, facilitate maintenance and the maintenance of main circuit.
Description
Technical field
The utility model relates to AuCT interconnection technique, is specially a kind of Three phase and exports composite bus bar.
Background technology
Along with the development of Chinese Railway heavy duty technology, need on the one hand to continue to promote single-machine capacity, another aspect keeps again or reduces the volume of unit power, and this just needs to use new technology, new material carrys out optimization system structure, meets the high speed development of high pressure, big current traction AuCT.The three-phase alternating current of current traction AuCT exports to adopt nothing but and connects in two ways, one adopts cable, naked copper row or traditional approach naked copper row covered with insulating material, another kind adopts lamination type polyester film composite bus bar comparatively popular at present, but all there are some shortcomings in above-mentioned technology, some product design requirements can not be met, make a concrete analysis of as follows: when connecting according to traditional approach, when connecting on the one hand, electric clearance increases, whole power cell volume is caused to increase, the space taking current transformer increases, affect the minimizing of train whole space reduction and gross mass, the highdensity development of locomotive heavy duty can not be met, install on the other hand that inconvenience, loss are large, weak heat-dissipating, temperature rise.If three-phase alternating current output loop adopts the polyester film composite bus bar of lamination type, then design cost is high, uneconomical
;meanwhile, due in order to ensure dielectric voltage withstand, partial discharge requirement, pressing place of bus bar edge at least meets more than 7mm, and the size that takes up room is large, therefore inapplicable in some products.In sum, prior art greatly limit the future development of these products towards high frequency small, intellectuality, high reliability, high economy.
Summary of the invention
The utility model is solve at present for drawing the technical problem that output busbar loop stray inductance is large, installation is inconvenient and design cost is high of AuCT, provides a kind of Three phase to export composite bus bar.
The utility model adopts following technical scheme to realize: a kind of Three phase exports composite bus bar, comprises from bottom to top stacked setting, surface and all adopt hot compress process and T, S, R tri-layers of copper bar of successively decreasing of length; Every layer of copper bar thickness is 2mm, copper bar surface electrolytic tinning, tin thickness 5-15 micron; Every layer of copper bar surface adopts electrostatic painting process spraying molding powder, and the thickness of molding powder is less than 0.8mm; Polyester film is stained with between adjacent copper bar; Described T, S, R tri-layers of copper bar are all by one end consistency from top to bottom; One end of described T layer copper bar in the position near its inferior horn horizontally outward side extend and extension have T-phase output connecting hole, the part of horizontal near other end inferior horn is outstanding downwards and ledge has a pair IGBT V3 connecting hole on T layer copper bar; Extend laterally in the middle part of one end of S layer copper bar and extension have S-phase output connecting hole, S layer copper bar given prominence to downwards in the part of horizontal near other end inferior horn and ledge has a pair IGBT V2 connecting hole; One end of described R layer copper bar horizontally outward in the position at angle on it extends and extension has R phase output terminal connecting hole in side, R layer copper bar is given prominence to downwards in the part of horizontal near other end inferior horn and it has a pair IGBT V1 connecting hole; Extension projection non-overlapping copies in the horizontal plane on described T, S, R layer copper bar; Described IGBT V1 connecting hole, IGBT V2 connecting hole, IGBT V3 connecting hole projection non-overlapping copies in the horizontal plane.Electrostatic spraying, be zinc-platedly ordinary skill in the art means.
The utility model is from practical application request, and make full use of the advantage of hot compress busbar and lamination type busbar, design a kind of Three phase and export composite bus bar, mainly solve following aspect problem: 1) solve main circuit and adopt the connection of cable, copper bar, hot compress busbar many, layout is complicated, facilitates installation, maintenance and the maintenance of main circuit; 2) solve that current-carrying little, loss when main circuit adopts generic connectivity mode is large, temperature rise, circuit reliability difference problem; 3) efficiently reduce system bulk, weight, meet the highdensity development of locomotive heavy duty; 4) significantly reduce design cost, improve the competitiveness of product in market.
Fig. 1 is the circuit theory diagrams that auxiliary inversion three-phase exports and lead-out terminal row is electrically connected by composite bus bar realization described in the utility model.From schematic diagram, DC+, DC-are direct-flow input end, and it is that module three-phase alternating current exports that RST exports busbar R, S, T; V1, V2, V3 are two-tube IGBT power device, are controlled by ACU, thus realize direct current 800V to three-phase alternating current 400V inversion.
NEW TYPE OF COMPOSITE busbar described in the utility model has merged the circuit function of grid line portion identification in main circuit schematic diagram, electrical connection is achieved by this composite bus bar between three-phase alternating current output and lead-out terminal being arranged, this composite bus bar adopts the copper bar that 3 pieces of 2mm are thick, copper bar surface electrolytic tinning (100% tin), thickness 5-15 micron; Every root copper bar surface adopts electrostatic painting process spraying molding powder, the thickness <0.8mm of molding powder, and is uniformly distributed; Polyester film is adopted to carry out high temperature adhesives between every two copper bars, three busbars can be formed a whole, reduce space like this, convenient installation, insulating effect can be played again, AC3500V/50Hz/60s withstand voltage test and 1100V/50Hz partial discharge test can be met, extend the useful life of busbar.
The three-phase that the utility model adopts novel hot compress and lamination to combine exports composite bus bar replacement cable, copper bar, hot compress mother or laminated composite bus bar row and is electrically connected, and decreases the numerous and diverse of wiring in the past, and make layout simple, quality is more reliable; Reduce volume and the weight of system, facilitate maintenance and the maintenance of main circuit; What is more important effectively reduces design cost, and improves the power in unit volume, meets the highdensity development of locomotive heavy duty, improves the competitiveness of product in market.
The utility model overcomes the shortcoming that two kinds of conventional at present modes connect, and make full use of its advantage, adopt new technology, new material design a kind of Three phase export composite bus bar, integrated level is good, meets the requirement of product high frequency small, intellectuality, high reliability, high economy.
Accompanying drawing explanation
The circuit theory diagrams that Fig. 1 auxiliary inversion three-phase exports and lead-out terminal row is electrically connected by composite bus bar realization described in the utility model.
Fig. 2 the utility model three-dimensional structure schematic diagram one.
Fig. 3 the utility model three-dimensional structure schematic diagram two.
Fig. 4 main TV structure schematic diagram of the present utility model.
Fig. 5 the utility model three-dimensional structure schematic diagram three.
1-T phase output terminal connecting hole, 2-S phase output terminal connecting hole, 3-R phase output terminal connecting hole, 4-IGBT V3 connecting hole, 5-IGBT V2 connecting hole, 6-IGBT V1 connecting hole, 7-polyester film.
Embodiment
A kind of Three phase exports composite bus bar, comprises from bottom to top stacked setting, surface and all adopts hot compress process and T, S, R tri-layers of copper bar of successively decreasing of length; Copper bar thickness is 2mm, copper bar surface electrolytic tinning, tin thickness 5-15 micron; Every layer of copper bar surface adopts electrostatic painting process spraying molding powder, and the thickness of molding powder is less than 0.8mm; Polyester film 7 is stained with between adjacent copper bar; Described T, S, R tri-layers of copper bar are all by one end consistency from top to bottom; One end of described T layer copper bar in the position near its inferior horn horizontally outward side extend and extension have on T-phase output connecting hole 1, T layer copper bar the part of horizontal near other end inferior horn is outstanding downwards and ledge has a pair IGBT V3 connecting hole 4; Extend laterally in the middle part of one end of S layer copper bar and extension have on S-phase output connecting hole 2, S layer copper bar outstanding and ledge has a pair IGBT V2 connecting hole 5 in the part of horizontal near other end inferior horn downwards; One end of described R layer copper bar angle on it position horizontally outward side extend and extension has on R phase output terminal connecting hole 3, R layer copper bar the part of horizontal near other end inferior horn outstanding downwards and its on have a pair IGBT V1 connecting hole 6; Extension projection non-overlapping copies in the horizontal plane on described T, S, R layer copper bar; Described IGBT V1 connecting hole 6, IGBT V2 connecting hole 5, IGBT V3 connecting hole 4 projection non-overlapping copies in the horizontal plane.
0.25mm polyester film is adopted to carry out high temperature adhesives between adjacent copper bar.
From Fig. 3, can be clear and definite shown in 4 find out that extension projection in the horizontal plane T, S, R layer copper bar is interlaced and arrange in turn; IGBT V1 connecting hole 6, IGBT V2 connecting hole 5, IGBT V3 connecting hole 4 projection in the horizontal plane do not overlap each other, non-interference, and arrange in turn.
According to circuit theory, composite bus bar is designed to " R ", " S ", " T " three layers, between three-phase, voltage is 400Vac, differs 120 degree between phase place; Consider the size that takes up space of whole busbar, so the distance between every layer is as far as possible little under the condition meeting electric current and voltage, every layer of copper bar surface requires to adopt electrostatic painting process spraying molding powder, the thickness <0.8mm of molding powder according to respective standard, and is uniformly distributed; Must isolate with the material of high insulation resistance between every two-layer copper bar, the selection of insulating material is relevant with interfloor distance with born voltage, and this composite bus bar ac circuit rated voltage is for exchanging 400V, and simultaneously in conjunction with main circuit situation, withstand voltage is 3500V.
Select 0.25 mm polyester film to carry out high temperature adhesives, this material is good electric property under high humidity, has anti-flammability, resistance to electric arc.For preventing, between three layers of conductor end face, starting the arc phenomenon occurs, select according to the creepage distance of system requirements and environmental condition, the mode that this composite bus bar adopts hot compress and pressing mold to combine.In order to improve the creepage ability between terminal, between terminal, fluting and mutual dislocation (shown in Fig. 3,4) are to improve creepage ability.
R, S, T tri-layers of conductor weld or cold end terminal process with being connected between IGBT lead-out terminal not adopt, but adopt zinc-plated naked copper row directly to connect, its advantage mainly: the weight of busbar can be alleviated, reduce cause loose contact because welding or solder terminal loosen, zinc-plated process contact resistance is little, technique is relatively simple and design cost is low.
By design of the present utility model, this Three phase output composite bus bar stray inductance is less than 50nH, lightweight, take up room dielectric voltage withstand that is little, that can bear interchange 3500V, draw that binding post is maximum can bear 30Nm moment, the insulating material selected and adhesive can make composite bus bar be operated in-25 DEG C ~+75 DEG C, be stored in the environment of-40 DEG C ~+85 DEG C, the designing requirement of product can be met.
Claims (2)
1. Three phase exports a composite bus bar, it is characterized in that, comprises T, S, R tri-layers of copper bar that from bottom to top stacked setting, surface all adopt hot compress process and length to successively decrease; Each copper bar thickness is 2mm, copper bar surface electrolytic tinning, tin thickness 5-15 micron; Every layer of copper bar surface adopts electrostatic painting process spraying molding powder, and the thickness of molding powder is less than 0.8mm; Polyester film (7) is stained with between adjacent copper bar; Described T, S, R tri-layers of copper bar are all by one end consistency from top to bottom; One end of described T layer copper bar in the position near its inferior horn horizontally outward side extend and extension have T-phase output connecting hole (1), the part of horizontal near other end inferior horn is outstanding downwards and ledge has a pair IGBT V3 connecting hole (4) on T layer copper bar; Extend laterally in the middle part of one end of S layer copper bar and extension have S-phase output connecting hole (2), S layer copper bar given prominence to downwards in the part of horizontal near other end inferior horn and ledge has a pair IGBT V2 connecting hole (5); One end of described R layer copper bar horizontally outward in the position at angle on it extends and extension has R phase output terminal connecting hole (3) in side, R layer copper bar is given prominence to downwards in the part of horizontal near other end inferior horn and it has a pair IGBT V1 connecting hole (6); Extension projection non-overlapping copies in the horizontal plane on described T, S, R layer copper bar; Described IGBT V1 connecting hole (6), IGBT V2 connecting hole (5), IGBT V3 connecting hole (4) projection non-overlapping copies in the horizontal plane.
2. Three phase as claimed in claim 1 exports composite bus bar, it is characterized in that, adopts 0.25mm polyester film (7) to carry out high temperature adhesives between adjacent copper bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420507999.4U CN204046443U (en) | 2014-09-04 | 2014-09-04 | Three phase exports composite bus bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420507999.4U CN204046443U (en) | 2014-09-04 | 2014-09-04 | Three phase exports composite bus bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204046443U true CN204046443U (en) | 2014-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420507999.4U Withdrawn - After Issue CN204046443U (en) | 2014-09-04 | 2014-09-04 | Three phase exports composite bus bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204046443U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104167935A (en) * | 2014-09-04 | 2014-11-26 | 永济新时速电机电器有限责任公司 | Novel three-phase output compound busbar |
| TWI831496B (en) * | 2022-12-01 | 2024-02-01 | 信通交通器材股份有限公司 | Power modules with decentralized staggered conductive busbars and low parasitic inductance |
-
2014
- 2014-09-04 CN CN201420507999.4U patent/CN204046443U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104167935A (en) * | 2014-09-04 | 2014-11-26 | 永济新时速电机电器有限责任公司 | Novel three-phase output compound busbar |
| CN104167935B (en) * | 2014-09-04 | 2016-08-31 | 永济新时速电机电器有限责任公司 | Three phase output composite bus bar |
| TWI831496B (en) * | 2022-12-01 | 2024-02-01 | 信通交通器材股份有限公司 | Power modules with decentralized staggered conductive busbars and low parasitic inductance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141224 Effective date of abandoning: 20160831 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |