CN203339968U - A non-inductive bus for a bridge converter - Google Patents
A non-inductive bus for a bridge converter Download PDFInfo
- Publication number
- CN203339968U CN203339968U CN2013203407684U CN201320340768U CN203339968U CN 203339968 U CN203339968 U CN 203339968U CN 2013203407684 U CN2013203407684 U CN 2013203407684U CN 201320340768 U CN201320340768 U CN 201320340768U CN 203339968 U CN203339968 U CN 203339968U
- Authority
- CN
- China
- Prior art keywords
- bus
- positive electrode
- negative pole
- terminal
- insulating
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to a non-inductive bus for a bridge converter. The non-inductive bus comprises a positive bus, a first insulating layer, a middle bus, a second insulating layer, and a negative bus which are arranged from top to bottom in a superposed manner. A first insulating member is disposed on the outer side of the positive bus while a second insulating member is disposed at the outer side of the negative bus. The first insulating member comprises a first protrusion which passes through the positive bus, the first insulating layer, and the middle bus successively. The second insulating member comprises a second protrusion which passes through the negative bus and the first insulating layer successively. The first protrusion is abutted against the second protrusion. Blots successively pass through the first protrusion of the first insulating member and the second protrusion of the second insulating member. The positive bus, the first insulating layer, the middle bus, the second insulating layer, and the negative bus are fixed by the assembly of screw nuts and the bolts. The positive bus comprises integrated positive bus terminals. The middle bus comprises integrated middle bus terminals. The negative bus comprises integrated negative bus terminals. The non-inductive bus has advantages of simple structure and easy assembly and disassembly.
Description
Technical field
The utility model relates to a kind of noninductive bus for bridge converter, and metal-oxide-semiconductor concrete and its coupling is encapsulated as the metal-oxide-semiconductor of SOT-227.
Background technology
The converter of single-phase bridge converter, three-phase bridge inverter and three-phase four-arm structure is often used in application scenario high-power, large electric current.And, in these converters, the most basic assembly consists of the upper and lower power switch pipe of power supply generating positive and negative voltage bus, single brachium pontis and the intermediate bus bar that connects upper and lower power switch pipe.Because there is stray inductance in the bus of these electrical connections, thereby, in powerful Technics of Power Electronic Conversion device, HF switch will cause that electric current sharply changes, thereby produce large switching voltage spike.Reasonable construction positive source bus, negative pole bus and intermediate bus bar structure, can be when reducing stray inductance, and the connection between the optimizing power switch, when reducing power tube drop-out voltage spike, improves the reliability of components and parts.
Bus structure for bridge converter in prior art is by all busbar laminate of short circuit bolt-through and insulating barrier, by the short circuit bolt, with the exit of components and parts, is electrically connected to; So not only need special baroque short circuit bolt, and need to arrange conductive pillar above the intersection location of short circuit bolt and the bus that will be connected, in short circuit bolt and the intersection location of the bus that will insulate, insulation column need to be set, therefore, the junction that causes bus and components and parts, complex structure not only, and needed amount of parts is more, also make the position at short circuit bolt-through busbar laminate and insulating barrier simultaneously, each busbar laminate and the insulating barrier required aperture of punching is different, has increased design complexity and difficulty of processing.In addition, while being equipped with mutually for the power tube with being encapsulated as SOT-227, location difficulty between the installing hole of power tube exit and bus bridge installing hole, and after installation, meeting, because bus bridge integral body blocks, can't directly be used the tie point of visual determination power tube and bus bridge, simultaneously, also, because remaining exit of power tube is blocked, make other peripheral components and parts connect difficulty.
Summary of the invention
The purpose of this utility model is to provide a kind of noninductive bus for bridge converter simple in structure, easy-to-mount, to overcome the deficiencies in the prior art.
In order to achieve the above object, the technical solution of the utility model is: a kind of noninductive bus for bridge converter, and its: comprise stack is arranged successively from top to bottom positive electrode bus, the first insulating barrier, intermediate bus bar, the second insulating barrier and negative pole bus the first insulating part and the second insulating part being arranged respectively in the outside of positive electrode bus and negative pole bus; The first projection that described the first insulating part has is successively through positive electrode bus, the first insulating barrier and intermediate bus bar, the second projection that described the second insulating part has is successively through negative pole bus and the second insulating barrier, and the first projection and the second projection offset, the first projection of screw bolt passes the first insulating part and the second projection of the second insulating part, and positive electrode bus, the first insulation board, intermediate bus bar, the second insulation board and negative pole bus are equipped fixing by nut and bolt; Described positive electrode bus, intermediate bus bar and negative pole bus have positive electrode bus terminal, intermediate bus bar terminal and the negative pole bus terminal of one each other separately.
In technique scheme, described positive electrode bus, intermediate bus bar and negative pole bus are all copper busbars.
In technique scheme, described the first insulating barrier and the second insulating barrier are all mylar plates, or the phenolic resins plate, or mica tape, or insulating glass plane.
In technique scheme, described the first insulating part and the second insulating part are all phenolic resins, or bakelite.
In technique scheme, the negative pole bus terminal of the positive electrode bus terminal of described positive electrode bus and negative pole bus respectively has several, and is positioned at the same side and has spacing arranged apart; And the both sides of intermediate bus bar respectively have 2 spacing intermediate bus bar terminal arranged apart is arranged.
In technique scheme, the number of the negative pole bus terminal of the positive electrode bus terminal of described positive electrode bus and negative pole bus equates.
The good effect that the utility model has is: after having adopted above-mentioned noninductive bus structure, positive electrode bus terminal of the present utility model, intermediate bus bar terminal and negative pole bus terminal are electrically connected to upper brachium pontis power tube and the corresponding exit of lower brachium pontis power tube respectively, to form switching circuit, and can effectively reduce wire equivalent inductance value, when when power tube cut-offs, in wire, curent change is violent, the due to voltage spikes that the drain electrode of cpable of lowering power switching tube and source electrode two ends produce.The utility model is not only simple in structure, and is convenient to dismounting, has reduced production cost of the present utility model, can be mass.Simultaneously, positive electrode bus terminal of the present utility model, intermediate bus bar terminal and negative pole bus terminal also can be connected with the buffer circuit of power switch pipe, further improve the functional reliability of circuit.
The accompanying drawing explanation
Fig. 1 is the structural representation of the utility model the first embodiment;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the A-A cutaway view of Fig. 2;
Fig. 4 is the three-dimensional explosive view of Fig. 1;
Fig. 5 is the explosive view of the utility model the second embodiment;
Fig. 6 is the use state diagram of the utility model the first embodiment;
Fig. 7 is the use state diagram of the utility model the second embodiment.
Embodiment
Below in conjunction with accompanying drawing and the embodiment that provides, the utility model is further described, but is not limited to this.
As shown in Fig. 1,2,3,4,6, a kind of noninductive bus for bridge converter, comprise stack is arranged successively from top to bottom positive electrode bus 1, the first insulating barrier 2, intermediate bus bar 3, the second insulating barrier 4 and negative pole bus 5, the first insulating part 6 and the second insulating part 9 are arranged respectively in the outside of positive electrode bus 1 and negative pole bus 5; The first protruding 6-1 that described the first insulating part 6 has is successively through positive electrode bus 1, the first insulating barrier 2 and intermediate bus bar 3, the second protruding 9-1 that described the second insulating part 9 has is successively through negative pole bus 5 and the second insulating barrier 4, and the first protruding 6-1 and the second protruding 9-1 offset, bolt 7 is successively through the first protruding 6-1 of the first insulating part 6 and the second protruding 9-1 of the second insulating part 9, and positive electrode bus 1, the first insulation board 2, intermediate bus bar 3, the second insulation board 4 and negative pole bus 5 are equipped fixing by nut 8 and bolt 7; Described positive electrode bus 1, intermediate bus bar 3 and negative pole bus 5 have positive electrode bus terminal 1-1, intermediate bus bar terminal 3-1 and the negative pole bus terminal 5-1 of one each other separately.
The first insulating barrier 2 described in the utility model and the second insulation 4 are all mylar plates, or the phenolic resins plate, or mica tape, or insulating glass plane.
The first insulating part 6 described in the utility model and the second insulating part 9 are all phenolic resins, or bakelite.
As shown in Figure 2,4, the negative pole bus terminal 5-1 of the positive electrode bus terminal 1-1 of described positive electrode bus 1 and negative pole bus 5 respectively has several, and is positioned at the same side and has spacing arranged apart; And the both sides of intermediate bus bar 3 respectively have 2 spacing intermediate bus bar terminal 3-1 arranged apart is arranged.
As shown in Figure 2, the number of the negative pole bus terminal 5-1 of the positive electrode bus terminal 1-1 of described positive electrode bus 1 and negative pole bus 5 equates.
In order to guarantee insulation effect of the present utility model, the equal diameters of the through hole that described positive electrode bus 1 and negative pole bus 5 are provided with and be greater than the diameter of the through hole that intermediate bus bar 3 is provided with.
As shown in Fig. 4, Fig. 6, the negative pole bus terminal 5-1 of the positive electrode bus terminal 1-1 of the described positive electrode bus 1 of embodiment 1 and negative pole bus 5 respectively has 2, the both sides of intermediate bus bar 3 respectively have 2 spacing intermediate bus bar terminal 3-1 arranged apart is arranged, and embodiment 1 is applicable to be connected with two power switch pipes converter that forms a switch arranged side by side.No. 1 power tube and No. 2 power tubes shown in Fig. 6 are upper brachium pontis power MOS pipe, and No. 3 power tubes and No. 4 power tubes are lower brachium pontis power MOS pipe.Wherein, the D utmost point (drain electrode) of 2 upper brachium pontis power MOS pipes is connected with the positive electrode bus terminal 1-1 of positive electrode bus 1, the S utmost point (source electrode) of 2 lower power MOS pipes is connected with the negative pole bus terminal 5-1 of negative pole bus 5, and the S utmost point (source electrode) of 2 upper power tubes is connected with the intermediate bus bar terminal 3-1 of the D utmost point (drain electrode) of 2 lower power tubes by intermediate bus bar 3, just can form the noninductive bus of single bridge arm structure of two pipe parallel connections.
As shown in Figure 5, a kind of noninductive bus for bridge converter, specifically be applicable to a kind of noninductive bus of three-phase bridge inverter, and the power switch of the every phase brachium pontis of three-phase bridge inverter carries out parallel connection by two power MOS pipes, forms.Its bus structure comprises positive electrode bus 1,2,3 intermediate bus bars of the first insulating barrier 3, the second insulating barrier 4 and the negative pole bus 5 that stack is arranged successively from top to bottom, and 3 the first insulating parts 6 and 3 the second insulating parts 9 are arranged respectively in the outside of positive electrode bus 1 and negative pole bus 5; The first protruding 6-1 that each first insulating part 6 has is successively through positive electrode bus 1, the first insulating barrier 2 and intermediate bus bar 3, the second protruding 9-1 that each described second insulating part 9 has is successively through negative pole bus 5 and the second insulating barrier 4, and the first protruding 6-1 and the second protruding 9-1 offset, bolt 7 is successively through the first protruding 6-1 of the first insulating part 6 and the second protruding 9-1 of the second insulating part 9, and positive electrode bus 1, the first insulation board 2, intermediate bus bar 3, the second insulation board 4 and negative pole bus 5 are equipped fixing by nut 8 and bolt 7; Described positive electrode bus 1, intermediate bus bar 3 and negative pole bus 5 have positive electrode bus terminal 1-1, intermediate bus bar terminal 3-1 and the negative pole bus terminal 5-1 of one each other separately.
The negative pole bus terminal 5-1 of the positive electrode bus terminal 1-1 of the described positive electrode bus 1 of embodiment 2 and negative pole bus 5 respectively has 6, and the both sides of each intermediate bus bar 3 respectively have 2 spacing intermediate bus bar terminal 3-1 arranged apart is arranged.
As shown in Figure 7, when embodiment 2 is applied to three-phase bridge inverter, the D utmost point (drain electrode) of 6 upper power MOS pipes of three-phase bridge inverter is connected with the positive electrode bus terminal 1-1 of positive electrode bus 1, the S utmost point (source electrode) of 6 lower power MOS pipes of three-phase bridge inverter is connected with the negative pole bus terminal 5-1 of negative pole bus 5, and the S utmost point (source electrode) of every 2 upper power MOS pipes is connected with the D utmost point of (homophase) 2 lower power MOS pipes correspondingly by the intermediate bus bar terminal 3-1 of intermediate bus bar 3.
When the utility model is applied to three-phase four-arm Structural Transformation device, can be to described positive electrode bus 1 and negative pole bus 5 is extended respectively and increase and power tube quantity are complementary positive electrode bus terminal 1-1 quantity and negative pole bus terminal 5-1 quantity, and the intermediate bus bar 3 between the first insulating barrier 2 and the second insulating barrier 4 is 4.
When the utility model is used, when power tube cut-off or wire in curent change when violent, can reduce the peak voltage that drain electrode and source electrode two ends produce.
Claims (6)
1. the noninductive bus for bridge converter, it is characterized in that: comprise stack is arranged successively from top to bottom positive electrode bus (1), the first insulating barrier (2), intermediate bus bar (3), the second insulating barrier (4) and negative pole bus (5), in the outside of positive electrode bus (1) and negative pole bus (5), the first insulating part (6) and the second insulating part (9) are arranged respectively, the first projection (6-1) that described the first insulating part (6) has is successively through positive electrode bus (1), the first insulating barrier (2) and intermediate bus bar (3), the second projection (9-1) that described the second insulating part (9) has is successively through negative pole bus (5) and the second insulating barrier (4), and the first projection (6-1) and the second projection (9-1) offset, bolt (7) is successively through first projection (6-1) of the first insulating part (6) and second projection (9-1) of the second insulating part (9), and positive electrode bus (1), the first insulation board (2), intermediate bus bar (3), the second insulation board (4) and negative pole bus (5) are equipped fixing by nut (8) and bolt (7), described positive electrode bus (1), intermediate bus bar (3) and negative pole bus (5) have positive electrode bus terminal (1-1), intermediate bus bar terminal (3-1) and the negative pole bus terminal (5-1) of one each other separately.
2. the noninductive bus for bridge converter according to claim 1, it is characterized in that: described positive electrode bus (1), intermediate bus bar (3) and negative pole bus (5) are all copper busbars.
3. the noninductive bus for bridge converter according to claim 1, it is characterized in that: described the first insulating barrier (2) and the second insulating barrier (4) are all mylar plates, or the phenolic resins plate, or mica tape, or insulating glass plane.
4. the noninductive bus for bridge converter according to claim 1, it is characterized in that: described the first insulating part (6) and the second insulating part (9) are all phenolic resins, or bakelite.
5. the noninductive bus for bridge converter according to claim 1, it is characterized in that: the positive electrode bus terminal (1-1) of described positive electrode bus (1) and the negative pole bus terminal (5-1) of negative pole bus (5) respectively have several, and are positioned at the same side and have spacing arranged apart; And the both sides of intermediate bus bar (3) respectively have 2 spacing intermediate bus bar terminal (3-1) arranged apart is arranged.
6. the noninductive bus for bridge converter according to claim 4 is characterized in that: the number of the positive electrode bus terminal (1-1) of described positive electrode bus (1) and the negative pole bus terminal (5-1) of negative pole bus (5) equates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203407684U CN203339968U (en) | 2013-06-14 | 2013-06-14 | A non-inductive bus for a bridge converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203407684U CN203339968U (en) | 2013-06-14 | 2013-06-14 | A non-inductive bus for a bridge converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203339968U true CN203339968U (en) | 2013-12-11 |
Family
ID=49708621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203407684U Expired - Fee Related CN203339968U (en) | 2013-06-14 | 2013-06-14 | A non-inductive bus for a bridge converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203339968U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110415861A (en) * | 2019-06-28 | 2019-11-05 | 浙江赛英电力科技有限公司 | A kind of simple busbar and its processing technology convenient for assembling |
-
2013
- 2013-06-14 CN CN2013203407684U patent/CN203339968U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110415861A (en) * | 2019-06-28 | 2019-11-05 | 浙江赛英电力科技有限公司 | A kind of simple busbar and its processing technology convenient for assembling |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203482103U (en) | A laminated busbar used for connecting a DC capacitor busbar with IGBT power modules connected in parallel | |
| CN203312144U (en) | Ultra-short-type solid encapsulation pole column | |
| CN203339968U (en) | A non-inductive bus for a bridge converter | |
| CN102013422B (en) | Insulated gate bipolar translator power tube module | |
| CN103227572A (en) | Subway auxiliary converter IGBT (insulated gate bipolar transistor) contravariant module | |
| CN203573811U (en) | Outdoor three-phase split type combined transformer | |
| CN203587620U (en) | End part backflow structure for GIS temperature rise test | |
| CN203279350U (en) | MOSFET power switch modular component | |
| CN105048228A (en) | Brake chopper composite busbar | |
| CN205282976U (en) | Aerify cabinet and gu seal utmost point post thereof | |
| CN2807582Y (en) | Three-phase synchronous electric generator outlet wiring board | |
| CN203734251U (en) | Three-phase common box bus used for 252kV high-voltage switch | |
| CN203366966U (en) | Transformer capable of conducting double-voltage input or output | |
| CN203456778U (en) | Metering handcart matching high tension switchgear | |
| CN203456779U (en) | A metering handcart suitable for a switch cabinet | |
| CN202353005U (en) | Insulating platform for high-voltage direct current change-over switch | |
| CN202134802U (en) | Contact box of double outlet terminal used in switch cabinet | |
| CN103457398A (en) | Wiring board for low-voltage and high-power motor | |
| CN201498883U (en) | Power bus bar phase modulation device | |
| CN204905612U (en) | Compound female arranging of braking copped wave | |
| CN205490283U (en) | Switched reluctance motor controller power part structure for electric motor car | |
| CN206023027U (en) | Indoor 10kV high-voltage metering cubicles | |
| CN215770824U (en) | Current transformer of high-voltage primary electric insulation structure | |
| CN202713120U (en) | Low-inductance main power bus structure | |
| CN202018907U (en) | Line bank with stationary contact |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Dai Weili Inventor after: Zhang Junkang Inventor after: Tang Wei Inventor after: Tian Hao Inventor after: Ding Jun Inventor after: Qin Yubo Inventor before: Dai Weili Inventor before: Zhang Junkang Inventor before: Tang Wei Inventor before: Tian Hao Inventor before: Ding Jun |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170802 Address after: 213000 No. 8, Xin Xin Road, Wujin hi tech Industrial Development Zone, Jiangsu, Changzhou Patentee after: CHANGZHOU HAOLE JINYE MACHINERY CO.,LTD. Address before: 213022 Jiangsu, North District, Changzhou Jin Ling North Road, No. 200 Patentee before: CHANGZHOU CAMPUS OF HOHAI University |
|
| 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: 20131211 |