CN207304393U - Rectification and the auxiliary converter power cell and composite bus bar of inversion facilitation - Google Patents
Rectification and the auxiliary converter power cell and composite bus bar of inversion facilitation Download PDFInfo
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- CN207304393U CN207304393U CN201721141364.7U CN201721141364U CN207304393U CN 207304393 U CN207304393 U CN 207304393U CN 201721141364 U CN201721141364 U CN 201721141364U CN 207304393 U CN207304393 U CN 207304393U
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- bus bar
- composite bus
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- inversion
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Abstract
The utility model discloses a kind of rectification and the auxiliary converter power cell of inversion facilitation, including water cooling substrate, installation rectification IGBT power cells on the left of the water cooling substrate, right side is installed by inversion IGBT power cells, left composite bus bar is installed outside the rectification IGBT power cells, right composite bus bar is installed outside the inversion IGBT power cells, the positive busbar lead-out terminal S1 and negative busbar lead-out terminal S2 of the left composite bus bar are installed on insulated left side support base, the positive busbar lead-out terminal S1 and negative busbar lead-out terminal S2 of the right composite bus bar are installed on side insulation right support base, the insulated left side support base and side insulation right support base are installed on water cooling substrate rear portion both sides.This programme is based on the power cell structure of the two-sided layouts of IGBT, designed in mirror image composite bus bar, and rectification and inversion busbar letter system DC loop structure.
Description
Technical field
High-power electric locomotive and high speed motor car power module are the utility model is related to, is specially a kind of rectification and inversion letter
The auxiliary converter power cell and composite bus bar of systemization.
Background technology
The power device of high power frequency conversion power supply is in switching process, due to from DC energy storage capacitance between IGBT device
Dc bus on stray inductance and IGBT module own inductance influence, can produce very high peak voltage, this spike,
It can make to increase by the electric current of device, ultimately result in device overheat, or even make IGBT out of control sometimes and exceed the specified peace of device
Full workspace and damage.
This to solve the problems, such as, generally use composite bus bar carries out the electrical connection between power device, it is by main electricity
Road busbar is stacked together into flat, and according to certain order that stacks, and high insulation resistance must be used between every layer
Material isolation.The requirement of low sense is so not only met, even more improves the reliability of IGBT work.
What train generally used at present is all that single power cell is connected by combination of two by copper bar in systems
The power cell formed, integrated level is not high, and the composite bus bar as component is also such.
One of prior art is to be connected between Auxiliary Power Unit main circuit using common copper bar.The prior art lacks
Point is as follows：
1）Circuit is connected using common copper bar, need to meet minimum electric clearance and creepage distance, whole power cell is not easy
Realize miniaturization, it is larger to take whole current transformer inner space；
2）Circuit stray inductance is big, and power device IGBT Reverse recoveries overvoltage is high, need to configure corresponding absorbing circuit, increases
Cost and the topology layout of power cell are added.
The two of prior art are that composite bus bar structure is asymmetric.The shortcomings that prior art, is as follows：
1）Unsymmetric structure poor universality.
2）It is unfavorable for the power cell structure design of the two-sided layouts of IGBT.
The content of the invention
To improve the versatility of busbar, the design and manufacture cost, the utility model that reduce component utilize power module list
The symmetrical structure of member designs the simple system scheme of rectification and inversion composite bus bar.
The utility model adopts the following technical scheme that realization：
A kind of auxiliary converter composite bus bar of rectification and inversion facilitation, including left composite bus bar as rectification busbar and
As the right composite bus bar of inversion busbar, the left composite bus bar by positive busbar, negative busbar and exchanges mother with right composite bus bar
Row laminates synthesis, passes through insulator separation between the positive busbar, negative busbar and alternating current bus bar.
In the left composite bus bar, two anode connection terminals are extended with 90 degree of bendings on the right side of its positive busbar, as positive pole
Arrange lead-out terminal S1（DC+）；An anode connecting pin is extended with 90 degree of bendings on the right side of its negative busbar, as negative busbar output terminal
Sub- S2（DC–）；Two exchange connecting pins are extended with 90 degree of bendings on the left of its alternating current bus bar, the exchange as rectification busbar inputs
Terminal S3（A）And S4（B）.
In the right composite bus bar, two anode connection terminals are extended with 90 degree of bendings on the left of its positive busbar, as positive pole
Arrange lead-out terminal S1（DC+）；An anode connecting pin is extended with 90 degree of bendings on the left of its negative busbar, as negative busbar output terminal
Sub- S2（DC–）；Three exchange connecting pins are extended with 90 degree of bendings on the right side of its alternating current bus bar, the exchange as inversion busbar exports
Terminal S5（U）、S6（V）And S7（W）.
The anode connection terminal is identical with the overbending direction of anode connecting pin, the anode connection terminal, anode connecting pin with
The overbending direction for exchanging connecting pin is opposite.
This composite bus bar is collectively constituted by left composite bus bar and right composite bus bar, is left and right mirror image, a part
For rectified power busbar, another part is inverter power busbar.S1 (DC+) be composite bus bar positive busbar lead-out terminal, S2
(DC-) it is directly installed on for the negative busbar lead-out terminal of composite bus bar, two kinds of terminals on insulating supporting seat, S3 (A) and S4 (B) is
The AC input terminal of rectification busbar, S5 (U), S6 (V) and the AC output terminal that S7 (W) is inversion busbar, wherein exchanging defeated
Go out terminal to be connected with high-tension connector, the composite bus bar connection of DC output terminal and converter system.
The facilitation design that DC loop part is considered during design is also differ in that with conventional composite bus bar.With
Based on the operation principle of rectification and inverter circuit, to reduce the otherness of current path in circuit and considering that facilitation is excellent
Point, busbar design for composite, is conducive to symmetrical structure design.
A kind of rectification and the auxiliary converter power cell of inversion facilitation, including water cooling substrate, the water-cooling
Rectification IGBT power cells are installed in substrate left side, inversion IGBT power cells are installed on right side, outside the rectification IGBT power cells
Left composite bus bar is installed, right composite bus bar is installed outside the inversion IGBT power cells, the positive busbar of the left composite bus bar is defeated
Go out terminal S1 and negative busbar lead-out terminal S2 is installed on insulated left side support base, the positive busbar output terminal of the right composite bus bar
Sub- S1 and negative busbar lead-out terminal S2 are installed on side insulation right support base, insulated left side support base and the side insulation right support
Seat is installed on water cooling substrate rear portion both sides.
Two positioning pins of the water cooling substrate front portion pass through two water-cooling base plate guide-localizations of high-tension connector
Hole, water cooling substrate are fixedly connected by screw rod and high-tension connector mechanical mounting hole with high-tension connector；The water cooling dissipates
The two water-cooling base plate water swivels of the cooling water supply connector of hot substrate and cooling water outlet connector respectively positioned at high-tension connector support
At half bore；The AC input terminal S3 and S4 of the left composite bus bar is exchanged with two on the left of high-tension connector with composite bus bar
Terminal connectivity port connects, AC output terminal S5, S6 and S7 and three on the right side of high-tension connector of the right composite bus bar
It is connected with composite bus bar ac terminal connectivity port.
Known by Theory of Electromagnetic Field, line is made flat cross section, the more Bao Yuekuan done under same section, its parasitism electricity
To feel smaller, opposite electric current is flowed through in adjacent wires, its magnetic field cancellation, can also reduce stray inductance, and between adjacent conductor
Apart from smaller, stray inductance is smaller.According to above-mentioned theory, the conducting wire in main circuit is made into composite bus bar, meets that main circuit is low
The requirement of sense, while based on symmetrical IGBT layouts, composite bus bar is made of two sides, is simultaneously the main electricity of individual event bridge rectifier
Road part, another side are three phase full bridge inverter main circuit part.Consider the working ways that rectification is connected with inversion by intermediate loop
Footpath, by letter system DC loop structure, calculates the loop resistance and inductance of composite bus bar, designs a pair of suitable for main circuit electricity
Stream equilibrium and the letter system busbar of left and right mirror symmetry, it is real to pass through composite bus bar by the electrical connection of rectification circuit and inverter circuit
It is existing.
This programme advantage is as follows：
1st, this programme main circuit uses laminated bus bar（Referred to as composite bus bar）Design, stray inductance is small, enhances power list
The reliability of member；Laminated bus bar has the design of concision and compact, is realized using smaller space between high current, high voltage component
Connection, provide guarantee for the Miniaturization Design of power cell.Rectification and inversion direct current busbar designed in mirror image, ensure that whole
The stray inductance in circuit is balanced, is conducive to drive circuit and the letter system property of intermediate supports circuit and reliability design.
2nd, this programme is based on the power cell structure of the two-sided layouts of IGBT, designed in mirror image composite bus bar, and rectification with
Inversion busbar letter system DC loop structure.
3rd, ac terminal and DC terminal are kept completely separate, and AC output terminal is realized by high-tension connector and converter system
The busbar of quick connection, DC output terminal and converter system connects, and is that space, and specification are saved in the circuit connection of converter system
The cabling mode of system.
Brief description of the drawings
Fig. 1 shows rectification and inversion facilitation composite bus bar main circuit schematic diagram.
Fig. 2 a represent left composite bus bar structure diagram.
Fig. 2 b represent right composite bus bar structure diagram.
Fig. 3 represents auxiliary converter power cell mounting structure schematic diagram.
Fig. 4 represents auxiliary converter power cell structure schematic diagram.
Fig. 5 represents water cooling substrate schematic diagram.
Fig. 6 a represent high-tension connector one side（With exchanging cabinet connecting side）Schematic diagram.
Fig. 6 b represent high-tension connector another side（With water-cooling base plate connecting side）Schematic diagram.
Fig. 7 represents that high-tension connector is assemblied in the assembling schematic diagram on water-cooling base plate.
In figure：1--- high-tension connectors, 1-1--- are mechanically fixed mainboard, 1-2--- water-cooling base plate guide-localizations hole, 1-
3--- water-cooling base plate screw rod mounting holes, 1-4--- water-cooling base plates water swivel support half bore, 1-5--- bolt mounting holes, 1-6--- are handed over
Terminal interface is flowed, 1-61--- is with exchanging cabinet side connectivity port, 1-62--- and composite bus bar ac terminal connectivity port；2--- water
Cold heat-radiating substrate, 2-12--- positioning pins, 2-13--- cooling water supply connectors, 2-14--- cooling water outlet connectors, 2-15--- high pressures
Connector mechanical mounting hole, 2-16--- accessory mechanical mounting holes；The left composite bus bars of 3-21---, the right compound mothers of 3-22---
Row, 3-1--- positive busbars, 3-2--- negative busbars, 3-3--- alternating current bus bars, 3-11--- anode connection terminals, the connection of 3-12--- anode
End, 3-13--- exchanges connecting pin；4-1--- rectification IGBT power cells, 4-2--- inversion IGBT power cells；5-1--- is left absolutely
Edge support base, the right insulating supporting seats of 5-2---.
Embodiment
Specific embodiment of the utility model is described in detail below in conjunction with the accompanying drawings.
A kind of rectification and the auxiliary converter composite bus bar of inversion facilitation, including the left composite bus bar 3- as rectification busbar
21 and the right composite bus bar 3-22 as inversion busbar, left composite bus bar 3-21 and right composite bus bar 3-22 by positive busbar 3-1,
Negative busbar 3-2 and alternating current bus bar 3-3 laminates synthesis, passes through insulating layer between positive busbar 3-1, negative busbar 3-2 and alternating current bus bar 3-3
Isolation.
As shown in Figure 2 a, two cathodes are extended with 90 degree of bendings in left composite bus bar 3-21, on the right side of its positive busbar 3-1 to connect
End 3-11 is met, as positive busbar lead-out terminal S1（DC+）；An anode is extended with the right side of its negative busbar 3-2 in 90 degree of bendings to connect
End 3-12 is met, as negative busbar lead-out terminal S2（DC–）；On the left of its alternating current bus bar 3-3 two exchanges are extended with 90 degree of bendings
Connecting pin 3-13, the AC input terminal S3 as rectification busbar（A）And S4（B）.
As shown in Figure 2 b, two cathodes are extended with 90 degree of bendings in right composite bus bar 3-22, on the left of its positive busbar 3-1 to connect
End 3-11 is met, as positive busbar lead-out terminal S1（DC+）；An anode is extended with the left of its negative busbar 3-2 in 90 degree of bendings to connect
End 3-12 is met, as negative busbar lead-out terminal S2（DC–）；On the right side of its alternating current bus bar 3-3 three exchanges are extended with 90 degree of bendings
Connecting pin 3-13, the AC output terminal S5 as inversion busbar（U）、S6（V）And S7（W）.
Anode connection terminal 3-11 is identical with the overbending direction of anode connecting pin 3-12, anode connection terminal 3-11, anode connection
Hold 3-12 opposite with the overbending direction for exchanging connecting pin 3-13.Two anode connection terminal 3-11 are located at the upper of anode connecting pin 3-12
Lower both sides.
High-tension connector is as shown in Fig. 6 a, 6b, including is mechanically fixed mainboard 1-1, is mechanically fixed the middle part longitudinal direction of mainboard 1-1
Arrange a two water-cooling base plate guide-localization hole 1-2 and water-cooling base plate screw rod mounting hole 1-3, two water-cooling base plate guide-localizations
Hole 1-2 is symmetrically arranged in water-cooling base plate screw rod mounting hole 1-3 both sides up and down；Around water-cooling base plate guide-localization hole 1-2 and water cooling
Bolt mounting holes 1-5 is disposed with around substrate screw rod mounting hole 1-3；The middle part lower edges for being mechanically fixed mainboard 1-1 are symmetrically set
There is water-cooling base plate water swivel support half bore 1-4.
It is mechanically fixed to run through at left and right sides of mainboard 1-1 and multiple ac terminal interface 1-6, each ac terminal interface is installed
1-6 one sides are with exchanging cabinet side connectivity port 1-61（As shown in Figure 6 a）, its another side is is connected with composite bus bar ac terminal
Port 1-62（As shown in Figure 6 b）.
When specifically used, as shown in fig. 7, two leads of water-cooling base plate 2（Positioning pin 2-12）Connect through high-voltage electrical apparatus
Two water-cooling base plate guide-localization hole 1-2 of connection device 1, the cooling water supply connector 2-13 and cooling water outlet connector of water-cooling base plate 2
Respectively at the water-cooling base plate water swivel support half bore 1-4 of 1 upper and lower sides of high-voltage electrical apparatus attachment device, high-voltage electrical apparatus connects 2-14
The water-cooling base plate screw rod mounting hole 1-3 at 1 center of device is just overlapped with the high-tension connector mechanical mounting hole of water-cooling base plate 2, real
It is fixedly connected both existing.1 side of high-voltage electrical apparatus attachment device with exchange cabinet side connectivity port 1-61 towards exchange cabinet, opposite side
The power module installed with composite bus bar ac terminal connectivity port 1-62 towards 2 both sides of water-cooling base plate.
As shown in Figure 3,4, a kind of rectification and the auxiliary converter power cell of inversion facilitation, including water cooling substrate 2
（Structure is as shown in Figure 5）, the left side of water cooling substrate 2 installation rectification IGBT power cells 4-1, right side installation inversion IGBT power
Left composite bus bar 3-21 is installed outside unit 4-2, rectification IGBT power cells 4-1, is installed outside inversion IGBT power cells 4-2 right multiple
The positive busbar lead-out terminal S1 and negative busbar lead-out terminal S2 for closing busbar 3-22, left composite bus bar 3-21 are installed on insulated left side branch
Support on seat 5-1, the positive busbar lead-out terminal S1 of right composite bus bar 3-22（DC+）With negative busbar lead-out terminal S2（DC–）It is installed on
On side insulation right support base 5-2, insulated left side support base 5-1 and side insulation right the support base 5-2 is installed on water-cooling base
2 rear portion both sides of plate.
As shown in fig. 7, two positioning pin 2-12 of the front portion of water cooling substrate 2 pass through two water coolings of high-tension connector 1
Substrate guide-localization hole 1-2, water cooling substrate 2 pass through screw rod and high-tension connector mechanical mounting hole 2-15 and high-tension connector
1 is fixedly connected；The cooling water supply connector 2-13 and cooling water outlet connector 2-14 of water cooling substrate 2 are located at high-tension connector respectively
At 1 two water-cooling base plate water swivels support half bore 1-4；The AC input terminal S3 of left composite bus bar 3-21（A）And S4（B）With
Two of the left side of high-tension connector 1 are connected with composite bus bar ac terminal connectivity port 1-62, the exchange of right composite bus bar 3-22
Lead-out terminal S5（U）、S6（V）、S7（W）With three and composite bus bar ac terminal connectivity port 1- of the right side of high-tension connector 1
62 connections.
What the technical program was brought has the beneficial effect that：
1st, this programme main circuit connection mode uses laminated composite bus bar, and not only stray inductance is small, enhances power cell
Reliability, and integral structure component is compact, improves the integrated level of system.
2nd, DC loop main circuit simplifies, and reduces production difficulty, saves cost.
3rd, system bulk and weight are reduced.
It should be noted last that above example is merely intended for describing the technical solutions of the present application, but not for limiting the present application, to the greatest extent
Pipe is described in detail with reference to the utility model embodiment, it will be understood by those of ordinary skill in the art that, it is new to this practicality
The technical solution technical scheme is modified or replaced equivalently of type, without departure from the spirit and scope of the technical solution of the utility model, its
It should all cover in claims.
Claims (3)
1. a kind of rectification and the auxiliary converter composite bus bar of inversion facilitation, it is characterised in that：Including the left side as rectification busbar
Composite bus bar（3-21）With the right composite bus bar as inversion busbar（3-22）, the left composite bus bar（3-21）With right compound mother
Row（3-22）By positive busbar（3-1）, negative busbar（3-2）And alternating current bus bar（3-3）Laminate synthesis, the positive busbar（3-1）, it is negative
Busbar（3-2）And alternating current bus bar（3-3）Between pass through insulator separation；
The left composite bus bar（3-21）In, its positive busbar（3-1）Right side is extended with two anode connection terminals in 90 degree of bendings（3-
11）, as positive busbar lead-out terminal S1；Its negative busbar（3-2）Right side is extended with an anode connecting pin in 90 degree of bendings（3-
12）, as negative busbar lead-out terminal S2；Its alternating current bus bar（3-3）Left side is extended with two exchange connecting pins in 90 degree of bendings（3-
13）, AC input terminal S3 and S4 as rectification busbar；
The right composite bus bar（3-22）In, its positive busbar（3-1）Left side is extended with two anode connection terminals in 90 degree of bendings（3-
11）, as positive busbar lead-out terminal S1；Its negative busbar（3-2）Left side is extended with an anode connecting pin in 90 degree of bendings（3-
12）, as negative busbar lead-out terminal S2；Its alternating current bus bar（3-3）Right side is extended with three exchange connecting pins in 90 degree of bendings（3-
13）, AC output terminal S5, S6 and S7 as inversion busbar；
The anode connection terminal（3-11）With anode connecting pin（3-12）Overbending direction it is identical, the anode connection terminal（3-
11）, anode connecting pin（3-12）With exchanging connecting pin（3-13）Overbending direction it is opposite.
2. rectification according to claim 1 and the auxiliary converter composite bus bar of inversion facilitation, it is characterised in that：Two just
Pole connecting pin（3-11）Positioned at anode connecting pin（3-12）Both sides up and down.
3. a kind of rectification and the auxiliary converter power cell of inversion facilitation, including water cooling substrate（2）, it is characterised in that：
The water cooling substrate（2）Left side is installed by rectification IGBT power cells（4-1）, right side installation inversion IGBT power cells（4-
2）, the rectification IGBT power cells（4-1）The outer left composite bus bar of installation（3-21）, the inversion IGBT power cells（4-2）
The outer right composite bus bar of installation（3-22）, the left composite bus bar（3-21）Positive busbar lead-out terminal S1 and negative busbar lead-out terminal
S2 is installed on insulated left side support base（5-1）On, the right composite bus bar（3-22）Positive busbar lead-out terminal S1 and negative busbar
Lead-out terminal S2 is installed on side insulation right support base（5-2）On, the insulated left side support base（5-1）With side insulation right support base
（5-2）It is installed on water cooling substrate（2）Rear portion both sides；
The water cooling substrate（2）Two anterior positioning pins（2-12）Through high-tension connector（1）Two water-cooling base plates
Guide-localization hole（1-2）, water cooling substrate（2）Pass through screw rod and high-tension connector mechanical mounting hole（2-15）It is connected with high pressure
Device（1）It is fixedly connected；The water cooling substrate（2）Cooling water supply connector（2-13）With cooling water outlet connector（2-14）Respectively
Positioned at high-tension connector（1）Two water-cooling base plate water swivels support half bore（1-4）Place；The left composite bus bar（3-21）Friendship
Flow input terminal S3 and S4 and high-tension connector（1）Two of left side and composite bus bar ac terminal connectivity port（1-62）Even
Connect, the right composite bus bar（3-22）AC output terminal S5, S6 and S7 and high-tension connector（1）Three of right side with it is compound
Busbar ac terminal connectivity port（1-62）Connection.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721141364.7U CN207304393U (en) | 2017-09-07 | 2017-09-07 | Rectification and the auxiliary converter power cell and composite bus bar of inversion facilitation |
Applications Claiming Priority (1)
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|---|---|---|---|
| CN201721141364.7U CN207304393U (en) | 2017-09-07 | 2017-09-07 | Rectification and the auxiliary converter power cell and composite bus bar of inversion facilitation |
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| CN207304393U true CN207304393U (en) | 2018-05-01 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108494264A (en) * | 2018-05-30 | 2018-09-04 | 西安中车永电电气有限公司 | A kind of highly integrated light-weighted power device |
| CN108768186A (en) * | 2018-07-23 | 2018-11-06 | 武汉合康亿盛电气连接系统有限公司 | A kind of inverter of circumference array structure |
| CN110365086A (en) * | 2019-05-31 | 2019-10-22 | 西安中车永电电气有限公司 | A kind of highly integrated charger power cell |
| CN110971137A (en) * | 2019-12-18 | 2020-04-07 | 阳光电源股份有限公司 | Inversion module |
| CN112311249A (en) * | 2019-07-30 | 2021-02-02 | 中车株洲电力机车研究所有限公司 | Extensible power device |
| CN113517820A (en) * | 2021-04-28 | 2021-10-19 | 中国第一汽车股份有限公司 | Motor controller power device and motor controller |
| CN113659848A (en) * | 2021-08-18 | 2021-11-16 | 中车青岛四方车辆研究所有限公司 | Auxiliary inversion module and railway vehicle |
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2017
- 2017-09-07 CN CN201721141364.7U patent/CN207304393U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108494264A (en) * | 2018-05-30 | 2018-09-04 | 西安中车永电电气有限公司 | A kind of highly integrated light-weighted power device |
| CN108768186A (en) * | 2018-07-23 | 2018-11-06 | 武汉合康亿盛电气连接系统有限公司 | A kind of inverter of circumference array structure |
| CN110365086A (en) * | 2019-05-31 | 2019-10-22 | 西安中车永电电气有限公司 | A kind of highly integrated charger power cell |
| CN112311249A (en) * | 2019-07-30 | 2021-02-02 | 中车株洲电力机车研究所有限公司 | Extensible power device |
| CN110971137A (en) * | 2019-12-18 | 2020-04-07 | 阳光电源股份有限公司 | Inversion module |
| CN113517820A (en) * | 2021-04-28 | 2021-10-19 | 中国第一汽车股份有限公司 | Motor controller power device and motor controller |
| CN113659848A (en) * | 2021-08-18 | 2021-11-16 | 中车青岛四方车辆研究所有限公司 | Auxiliary inversion module and railway vehicle |
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