CN103138612A - Traction inverting power module - Google Patents

Traction inverting power module Download PDF

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Publication number
CN103138612A
CN103138612A CN2011103903980A CN201110390398A CN103138612A CN 103138612 A CN103138612 A CN 103138612A CN 2011103903980 A CN2011103903980 A CN 2011103903980A CN 201110390398 A CN201110390398 A CN 201110390398A CN 103138612 A CN103138612 A CN 103138612A
Authority
CN
China
Prior art keywords
power module
traction
busbar
inverted power
bus bar
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2011103903980A
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Chinese (zh)
Inventor
张晋芳
柴媛
梁海刚
陈宏�
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yongji Xinshisu Electric Equipment Co Ltd
Original Assignee
Yongji Xinshisu Electric Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yongji Xinshisu Electric Equipment Co Ltd filed Critical Yongji Xinshisu Electric Equipment Co Ltd
Priority to CN2011103903980A priority Critical patent/CN103138612A/en
Publication of CN103138612A publication Critical patent/CN103138612A/en
Pending legal-status Critical Current

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Abstract

The invention provides a traction inverting power module. The traction inverting power module comprises a substrate, and a plurality of insulated gate bipolar transistors and driving protective plates are fixedly arranged on one side of substrate. The traction inverting power module further comprises a flat composite busbar. The traction inverting power module can also comprise a buffer capacitor and a discharge resister. The insulated gate bipolar transistors, the buffer capacitor and the discharge resister are connected with a main circuit through the busbar. According to the traction inverting power module, the flat composite busbar is integrated on the module, so that parasitic inductance in a circuit is reduced, the structure is simplified, and maintenance convenience of the traction inverting power module is improved, and the reliability of the circuit is improved at the same time.

Description

The traction inverted power module
Technical field
The present invention relates to electronic technology, relate in particular to a kind of traction inverted power module.
Background technology
Along with the development of locomotive AC technology, adopt high-power IGBT to be that the current transformer of switch element is used increasingly extensive, in order to facilitate the maintenance of main circuit, a kind of a plurality of IGBT devices of main circuit are installed integrated, to form the power model unit.
The traction inverted power module of locomotive is the core component of locomotive traction system, it is with middle dc voltage, after the three-phase circuit that on the process power model, IGBT forms carries out inversion, coordinate control system to complete power conversion through inversion, for traction electric machine provides suitable three-phase alternating voltage.
Existing traction inverted power module is structurally not independent, when power circuit breaks down, is unfavorable for safeguarding and changing; And circuit all adopts dc bus, and stray inductance is large, and power device easily damages, and circuit reliability is poor.
Summary of the invention
The invention provides a kind of traction inverted power module, to solve the large defective of circuit parasitic inductance in prior art, reduce the circuit parasitic inductance, improve circuit reliability, improve simultaneously the convenience of inverted power module maintenance.
The invention provides a kind of traction inverted power module; comprise substrate; one side a plurality of insulated gate bipolar transistors of fixed installation and the driving baffle of described substrate; wherein; described traction inverted power module also comprises composite bus bar; described composite bus bar is stacked by the busbar of a plurality of flat and forms, and described inverted power module is connected to major loop by described composite bus bar.
Traction inverted power module as above, wherein, described insulated gate bipolar transistor is six; Described composite bus bar has three layers of busbar that are stacked together, draw two terminals for input forward dc voltage on the ground floor busbar, draw two terminals for the input negative DC voltage on second layer busbar, draw three terminals for output AC voltage on the 3rd layer of busbar.
Traction inverted power module provided by the invention is by the composite bus bar of integrated flat on module, replace dc bus of the prior art, reduced the stray inductance in the circuit, improved the reliability of circuit, simplify the structure simultaneously, improved the maintenance convenience of inverted power module.
Description of drawings
The traction inverted power module structural representation one that Fig. 1 provides for the embodiment of the present invention.
The traction inverted power module structural representation two that Fig. 2 provides for the embodiment of the present invention.
The view that Fig. 3 removes composite bus bar for the traction inverted power module that the embodiment of the present invention provides.
The circuit theory diagrams of the traction inverted power module that Fig. 4 provides for the embodiment of the present invention.
Composite bus bar structural representation in the traction inverted power module that Fig. 5 provides for the embodiment of the present invention.
Reference numeral:
The 1-substrate; The 2-insulated gate bipolar transistor; 3-drives baffle;
The 4-composite bus bar; The 41-terminal.
Embodiment
the traction inverted power module structural representation that Fig. 1 provides for the embodiment of the present invention, the traction inverted power module structural representation two that Fig. 2 provides for the embodiment of the present invention, the view that Fig. 3 removes composite bus bar for the traction inverted power module that the embodiment of the present invention provides, the embodiment of the present invention provides a kind of traction inverted power module, comprise substrate 1, one side a plurality of insulated gate bipolar transistors 2 of fixed installation of substrate 1 and the driving baffle 3 that is used to this insulated gate bipolar transistor 2 to provide driving to protect, be illustrated in figure 3 as the traction inverted power module schematic diagram of removing after composite bus bar, purpose is to show insulated gate bipolar transistor 2 and drive baffle 3 for clear, wherein, this traction inverted power module also comprises composite bus bar 4, as illustrated in fig. 1 and 2, composite bus bar 4 is stacked by the busbar of a plurality of flat and forms, above-mentioned inverted power module is connected to major loop by this busbar.
By Theory of Electromagnetic Field as can be known, if circuit connection has the cross section of flat, Bao Yuekuan is got in same cross section, the stray inductance of circuit is less, accordingly composite bus bar 4 is set to flat, thereby can reduces the stray inductance of circuit, improved the reliability of circuit.
in the three-phase inverting circuit of reality is used, the quantity that above-mentioned IGBT is set is six, composite bus bar 4 has three layers of busbar that are stacked together, the circuit theory diagrams of the traction inverted power module that Fig. 4 provides for the embodiment of the present invention, composite bus bar structural representation in the traction inverted power module that Fig. 5 provides for the embodiment of the present invention, as shown in Figure 4 and 5, draw two terminals 41 for input forward dc voltage on the ground floor busbar, as the S1 in Figure 4 and 5 and S7, draw two terminals 41 for the input negative DC voltage on second layer busbar, it is S2 and S6, draw three terminals 41 for output AC voltage on the 3rd layer of busbar, it is S3, S4 and S5, after introducing direct voltage at S1, S2, S6, S7, pass through three-phase inverting circuit, obtain the alternating voltage of needs, through S3, S4, S5 output.In said structure, by busbar is stacked together, can make the electric current that flows through opposite direction in adjacent wires, cancel out each other in its magnetic field, thereby further reduce the stray inductance in circuit.
Further, be filled with insulating laminated sheet in the gap between three layers of busbar, and every layer of busbar covering be equipped with polyester film, above-mentioned insulating laminated sheet has high insulation resistance, and electric property is good under high humidity environment, and anti-flammability and arc resistance better.
In actual applications, each busbar can be comprised of the copper bar that monolithic or multi-disc thickness are 3-4mm, can draw above-mentioned a plurality of terminals 41, design by said structure, the stray inductance of this composite bus bar 4 can be less than 50nH, compared with prior art, has improved the reliability of circuit.
Take substrate 1 as the basis, device commonly used in the prior aries such as Absorption Capacitance and discharge resistance can be installed simultaneously, make circuit integration, reduce the volume of whole circuit.The inverted power module that the embodiment of the present invention provides is by the composite bus bar of integrated flat on module, replace dc bus of the prior art, reduced the stray inductance in the circuit, improved the reliability of circuit, and simplify the structure, improved the maintenance convenience of inverted power module.
It should be noted that at last: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment, the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of various embodiments of the present invention technical scheme.

Claims (4)

1. one kind is drawn inverted power module; comprise substrate; one side a plurality of insulated gate bipolar transistors of fixed installation and the driving baffle of described substrate; it is characterized in that; described traction inverted power module also comprises composite bus bar; described composite bus bar is stacked by the busbar of a plurality of flat and forms, and described inverted power module is connected to major loop by described composite bus bar.
2. traction inverted power module according to claim 1, is characterized in that, described insulated gate bipolar transistor is six; Described composite bus bar has three layers of busbar that are stacked together, draw two terminals for input forward dc voltage on the ground floor busbar, draw two terminals for the input negative DC voltage on second layer busbar, draw three terminals for output AC voltage on the 3rd layer of busbar.
3. traction inverted power module according to claim 2, is characterized in that, the gap-fill between described three layers of busbar has insulating laminated sheet, and every layer of busbar covering is equipped with polyester film.
4. according to claim 1-3 arbitrary described traction inverted power modules, is characterized in that, the copper bar that each busbar is 3-4mm by monolithic or multi-disc thickness forms.
CN2011103903980A 2011-11-30 2011-11-30 Traction inverting power module Pending CN103138612A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011103903980A CN103138612A (en) 2011-11-30 2011-11-30 Traction inverting power module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011103903980A CN103138612A (en) 2011-11-30 2011-11-30 Traction inverting power module

Publications (1)

Publication Number Publication Date
CN103138612A true CN103138612A (en) 2013-06-05

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011103903980A Pending CN103138612A (en) 2011-11-30 2011-11-30 Traction inverting power module

Country Status (1)

Country Link
CN (1) CN103138612A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103427669A (en) * 2013-08-23 2013-12-04 青岛四方车辆研究所有限公司 Vehicular converter power module
CN103700429A (en) * 2014-01-03 2014-04-02 合康变频科技(武汉)有限公司 Laminated busbar applied to high-frequency large current-carrying circuit
CN104167933A (en) * 2014-09-04 2014-11-26 永济新时速电机电器有限责任公司 Novel power conversion unit allowing laminated coating row and composite busbar to be used in hybrid mode
CN104779818A (en) * 2015-04-24 2015-07-15 永济新时速电机电器有限责任公司 Inverter chopping wave composite busbar suitable for standardizing traction power module of electric motor unit
CN107370343A (en) * 2017-07-03 2017-11-21 中车大连电力牵引研发中心有限公司 Auxiliary power module and circuit

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2696198Y (en) * 2004-04-06 2005-04-27 谢步明 Combined compound bus
CN102025261A (en) * 2010-10-14 2011-04-20 国网电力科学研究院 Air-cooled converter power module system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2696198Y (en) * 2004-04-06 2005-04-27 谢步明 Combined compound bus
CN102025261A (en) * 2010-10-14 2011-04-20 国网电力科学研究院 Air-cooled converter power module system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103427669A (en) * 2013-08-23 2013-12-04 青岛四方车辆研究所有限公司 Vehicular converter power module
CN103700429A (en) * 2014-01-03 2014-04-02 合康变频科技(武汉)有限公司 Laminated busbar applied to high-frequency large current-carrying circuit
CN104167933A (en) * 2014-09-04 2014-11-26 永济新时速电机电器有限责任公司 Novel power conversion unit allowing laminated coating row and composite busbar to be used in hybrid mode
CN104167933B (en) * 2014-09-04 2016-08-24 永济新时速电机电器有限责任公司 The new power converter unit that lamination spraying row is used in mixed way with composite bus bar
CN104779818A (en) * 2015-04-24 2015-07-15 永济新时速电机电器有限责任公司 Inverter chopping wave composite busbar suitable for standardizing traction power module of electric motor unit
CN107370343A (en) * 2017-07-03 2017-11-21 中车大连电力牵引研发中心有限公司 Auxiliary power module and circuit

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Application publication date: 20130605

C12 Rejection of a patent application after its publication