CN205336130U - Parallelly connected surge of electric automobile dc -to -ac converter IGBT module restraines structure - Google Patents
Parallelly connected surge of electric automobile dc -to -ac converter IGBT module restraines structure Download PDFInfo
- Publication number
- CN205336130U CN205336130U CN201620090489.0U CN201620090489U CN205336130U CN 205336130 U CN205336130 U CN 205336130U CN 201620090489 U CN201620090489 U CN 201620090489U CN 205336130 U CN205336130 U CN 205336130U
- Authority
- CN
- China
- Prior art keywords
- conductor layer
- igbt module
- electric automobile
- positive pole
- conductive layer
- 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.)
- Active
Links
Landscapes
- Inverter Devices (AREA)
Abstract
Parallelly connected surge of electric automobile dc -to -ac converter IGBT module restraines structure, including compound female arranging, compound female arranging includes anodal conductive layer, insulating layer and the negative pole conductive layer of closed assembly in proper order, compound female arranging is equipped with the through -hole that runs through anodal conductive layer, insulating layer and negative pole conductive layer, anodal conductive layer and negative pole conductive layer all are equipped with a plurality of incoming end and connect the output. The beneficial effects of the utility model are that, the PN pin of guaranteeing each IGBT is the shortest to electrolytic capacitor's distance, and the equidistance, has guaranteed like this that induction reactance is minimum, makes voltage variation rate and reduces by a wide margin, female positive negative pole of arranging adopts the stromatolite closely to arrange, and maximum radius's the production that has reduced the circulation electric current suppresses the formation of generating line surge.
Description
Technical field
This utility model belongs to the electric connecting part between power model, particularly the Surge suppression structure of electric automobile inverter IGBT module parallel。
Background technology
Intelligence transistor modular is the device for power switching of a kind of advanced person, has high power transistor high current density, low saturation voltage and high voltage bearing advantage and the advantage of field-effect transistor high input impedance, high switching frequency and low driving power。And intelligence transistor modular has been internally integrated logic, control, detection and protection circuit; it is easy to use; not only reduce volume and the development time of system; also greatly strengthen the reliability of system; adapt to the developing direction modularity of current power device, Composite and power integrated circuit, obtained in field of power electronics and be increasingly widely applied。
The two-tube IGBT of existing many employings in electric automobile inverter, because it has stronger price advantage, but when realizing high-power converter, by the restriction of present power semiconductor device capacitance, it is necessary to adopt multiple IGBT module parallel。Prior art can there are the following problems in parallel connection: flow through each single IGBT electric current can not current-sharing, over-burden to cause individual module；After IGBT parallel connection, the surge superposition at PN pin place can be caused, cause very big bus peak voltage, affect the reliability of complete machine, and increase the weight of EMC, network system is caused harmonic pollution。
Utility model content
The purpose of this utility model is to overcome above-mentioned deficiency, it is provided that one is available for IGBT module parallel and uses, and simple in construction is less costly, the Surge suppression structure of electric automobile inverter IGBT module parallel。
For achieving the above object, the technical solution adopted in the utility model is:
The Surge suppression structure of electric automobile inverter IGBT module parallel, including composite bus bar, described composite bus bar includes the positive pole conductor layer of closed assembly successively, insulating barrier and cathode conductor layer, described composite bus bar is provided with through the through hole of positive pole conductor layer, insulating barrier and cathode conductor layer, and described positive pole conductor layer and cathode conductor layer are equipped with several incoming ends and pick out end。
Preferably: described positive pole conductor layer and cathode conductor layer be arranged in parallel。
Preferably: described positive pole conductor layer and cathode conductor layer adopt copper material to make。
Preferably: described insulating barrier adopts polyethylene terephthalate material to make。
Preferably: described composite bus bar is that Z-type is arranged。
Preferably: described positive pole conductor layer and cathode conductor layer are equipped with can fix the securing member being connected with other power model。
Preferably: described positive pole conductor layer connects the positive pole of direct current capacitors and the colelctor electrode of IGBT module；Described cathode conductor layer connects the negative pole of direct current capacitors and the emitter stage of IGBT module。
The beneficial effects of the utility model are, it is ensured that the PN pin of each IGBT is the shortest to the distance of electrochemical capacitor, and equidistantly, this ensure that induction reactance is minimum, make voltage change ratio be greatly lowered；The both positive and negative polarity of busbar adopts lamination closely to arrange, the generation reducing loop current of amplitude peak, it is suppressed that the generation of bus surge；This utility model is provided without the method that traditional large area is laid, and saves copper sheet in a large number, reduces complete machine cost。
Accompanying drawing explanation
Fig. 1 structural representation of the present utility model。
Wherein: 1-composite bus bar, 2-positive pole conductor layer, 3-insulating barrier, 4-cathode conductor layer, 5-through hole, 6-securing member。
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, this utility model is described in further detail:
The Surge suppression structure of electric automobile inverter IGBT module parallel, including composite bus bar 1, described composite bus bar includes the positive pole conductor layer 2 of closed assembly successively, insulating barrier 3 and cathode conductor layer 4, and described composite bus bar 1 is provided with through the through hole 5 of positive pole conductor layer 2, insulating barrier 3 and cathode conductor layer 4。Composite bus bar 1 closed assembly layer by layer and insulation are separated by, and the AC and DC signal of telecommunication transmits simultaneously, and service efficiency is higher。Preferably, the composite bus bar 1 after closed assembly carries out hot-pressing processing；After hot-pressing processing completes, described composite bus bar 1 edge carrying out pressing and closes insulation processing, greatly improve the bulk strength of conductive plate, make busbar impact resistance higher, reliability is higher。Described positive pole conductor layer 2 and cathode conductor layer 4 are equipped with several incoming ends and pick out end, can multiple IGBT module in parallel and electrochemical capacitor, ensure that the PN pin of each IGBT is the shortest to the distance of electrochemical capacitor, and equidistantly simultaneously, this ensure that induction reactance is minimum, make voltage change ratio be greatly lowered。
Preferably: described positive pole conductor layer 2 and cathode conductor layer 4 be arranged in parallel, effectively eliminate mutual inductance, reduce stray inductance, improve power device reliability of operation, the generation reducing loop current of amplitude peak, it is suppressed that the generation of bus surge。
Preferably: described positive pole conductor layer 2 and cathode conductor layer 4 adopt copper material to make, copper ductility is good, heat conductivity and electric conductivity are high, therefore at the material that cable and electric, electronic component are the most frequently used, also being used as construction material, it is possible to form numerous kinds of alloys, copper is also durable metal, repeatedly can reclaim and its mechanical performance lossless, select copper material to have cost advantage。
Preferably: described insulating barrier 3 adopts polyethylene terephthalate material to make, there is excellent physical and mechanical properties, life-time service temperature is up to 120 DEG C, electrical insulating property is excellent, even under high-temperature high-frequency, its electrical property is still better, creep resistance, fatigue durability, rub resistance, dimensional stability are all fine。
Preferably: described composite bus bar 1 is arranged for Z-type, and composite bus bar 1 have changed shape so that lead-in inductance is evenly distributed, and the current-sharing of parallel IGBT is effective。
Preferably: described positive pole conductor layer 2 and cathode conductor layer 4 are equipped with can fix the securing member being connected with other power model, can be connected fixing to IGBT module and other power model。
Preferably: described positive pole conductor layer 2 connects the positive pole of direct current capacitors and the colelctor electrode of IGBT module；Described cathode conductor layer 4 connects the negative pole of direct current capacitors and the emitter stage of IGBT module。
The above is preferred implementation of the present utility model; certainly the interest field of this utility model can not be limited with this; should be understood that; for those skilled in the art; the technical solution of the utility model is modified or equivalent replacement, without departure from the protection domain of technical solutions of the utility model。
Claims (7)
1. the Surge suppression structure of electric automobile inverter IGBT module parallel, it is characterized in that: include composite bus bar (1), described composite bus bar (1) includes positive pole conductor layer (2) of closed assembly successively, insulating barrier (3) and cathode conductor layer (4), described composite bus bar (1) is provided with through the through hole (5) of positive pole conductor layer (2), insulating barrier (3) and cathode conductor layer (4), and described positive pole conductor layer (2) and cathode conductor layer (4) are equipped with several incoming ends and pick out end。
2. the Surge suppression structure of electric automobile inverter IGBT module parallel according to claim 1, it is characterised in that: described positive pole conductor layer (2) and cathode conductor layer (4) be arranged in parallel。
3. the Surge suppression structure of electric automobile inverter IGBT module parallel according to claim 2, it is characterised in that: described positive pole conductor layer (2) and cathode conductor layer (4) adopt copper material to make。
4. the Surge suppression structure of electric automobile inverter IGBT module parallel according to claim 1, it is characterised in that: described insulating barrier (3) adopts polyethylene terephthalate material to make。
5. the Surge suppression structure of electric automobile inverter IGBT module parallel according to claim 1, it is characterised in that: described composite bus bar (1) is arranged for Z-type。
6. the Surge suppression structure of electric automobile inverter IGBT module parallel according to claim 1, it is characterised in that: described positive pole conductor layer (2) and cathode conductor layer (4) are equipped with can fix the securing member (6) being connected with other power model。
7. the Surge suppression structure of electric automobile inverter IGBT module parallel according to claim 6, it is characterised in that: described positive pole conductor layer (2) connects the positive pole of direct current capacitors and the colelctor electrode of IGBT module；Described cathode conductor layer (4) connects the negative pole of direct current capacitors and the emitter stage of IGBT module。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620090489.0U CN205336130U (en) | 2016-01-29 | 2016-01-29 | Parallelly connected surge of electric automobile dc -to -ac converter IGBT module restraines structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620090489.0U CN205336130U (en) | 2016-01-29 | 2016-01-29 | Parallelly connected surge of electric automobile dc -to -ac converter IGBT module restraines structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205336130U true CN205336130U (en) | 2016-06-22 |
Family
ID=56316978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620090489.0U Active CN205336130U (en) | 2016-01-29 | 2016-01-29 | Parallelly connected surge of electric automobile dc -to -ac converter IGBT module restraines structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205336130U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108565117A (en) * | 2018-02-07 | 2018-09-21 | 无锡宸瑞新能源科技有限公司 | A kind of thin film capacitor for electric vehicle of integrated EMC schemes |
-
2016
- 2016-01-29 CN CN201620090489.0U patent/CN205336130U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108565117A (en) * | 2018-02-07 | 2018-09-21 | 无锡宸瑞新能源科技有限公司 | A kind of thin film capacitor for electric vehicle of integrated EMC schemes |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104112718B (en) | A kind of low stray inductance GaN power integration module of two-sided layout | |
| CN104143547B (en) | A kind of low stray inductance GaN power integration module of shunt capacitance intermediate layout | |
| CN103986354B (en) | Three-level rectifier | |
| CN206099366U (en) | Ambipolar photovoltaic power generation system | |
| CN103825479A (en) | Power converter | |
| CN203482103U (en) | A laminated busbar used for connecting a DC capacitor busbar with IGBT power modules connected in parallel | |
| CN203504429U (en) | Auxiliary conversion inverter module | |
| CN204030991U (en) | Be applicable to the three-phase inversion composite bus bar of half-bridge module | |
| CN201345503Y (en) | Composite bus bar | |
| CN204349816U (en) | A kind of three level semiconductor module, lamination copper bar, facies unit circuit and converter | |
| CN104167934A (en) | Three-phase inversion composite busbar suitable for half-bridge module | |
| CN204130350U (en) | The metallic film capacitor that a kind of stack bus bar is drawn | |
| CN201869116U (en) | Three-level circuit and converter | |
| CN205336130U (en) | Parallelly connected surge of electric automobile dc -to -ac converter IGBT module restraines structure | |
| CN203827203U (en) | High-power optical storage integrated converter | |
| CN209963431U (en) | Direct-current busbar for electric vehicle inverter | |
| CN103247984A (en) | DC (Direct-Current) common-mode busbar integrated with EMI (Electromagnetic Interference) filtering function | |
| CN207304392U (en) | A kind of high voltage frequency conversion power unit connected by pcb board | |
| CN203660898U (en) | Low-cost layout structure with low stray inductance in electronic equipment | |
| CN202931178U (en) | Low stray inductance power module adopting rigid insulating plate for convergence | |
| CN103326397B (en) | Unified power quality controller controlled by hybrid frequency | |
| CN102820663A (en) | Dynamic reactive power compensation and harmonic treatment complete equipment | |
| CN203289335U (en) | DC common-mode busbar integrating EMI filtering function | |
| CN203537260U (en) | Seven-level single-phase inverter circuit | |
| CN207968337U (en) | Power concentration EMU traction composite bus bar |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |