CN202713120U - Low-inductance main power bus structure - Google Patents
Low-inductance main power bus structure Download PDFInfo
- Publication number
- CN202713120U CN202713120U CN 201220301286 CN201220301286U CN202713120U CN 202713120 U CN202713120 U CN 202713120U CN 201220301286 CN201220301286 CN 201220301286 CN 201220301286 U CN201220301286 U CN 201220301286U CN 202713120 U CN202713120 U CN 202713120U
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- negative electrode
- main power
- positive
- module
- positive electrode
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Abstract
The utility model discloses a low-inductance main power bus structure. The low-inductance main power bus structure comprises a positive electrode board, a negative electrode board and a middle insulating board. The upper end of the positive electrode board and the upper end of the negative electrode board are provided with a positive electrode connection end and a negative electrode connection end for connecting a capacitor pool module respectively. The positive electrode board and the negative electrode board are provided with a positive electrode port and a negative electrode port for connecting a switching tube module respectively. The positive electrode connection end and the negative electrode connection end are bent in opposite directions respectively to cause the positive electrode connection end and the negative electrode connection end to be arranged in a Y-shaped structure. According to the utility model, the connection portion of the main power bus and the capacitor pool bus of the capacitor pool module is designed into a Y-shaped structure, so the IGBT module is effectively protected, and the performance of the whole system is more stable; a bending angle is designed at the connection portion of the main power bus, so the stress born by the IGBT module is reduced; groovings are designed at the positive electrode connection end and the negative electrode connection end of the main power bus, so the bending strength of the copper bar at the connection portion is reduced; and the main power bus and the capacitor pool bus are designed into a structure in which the upper portion and the lower portion are connected at the same time, so the size of the width of the cabinet can be effectively reduced.
Description
Technical field
The utility model relates to a kind of main power generatrix structure of low inductance.
Background technology
The positive and negative electrode of main power generatrix is in process in parallel in present inverter, the current transformer, all adopt lengthwise structure, as shown in Figure 1, positive and negative electrode is separately connected, distance between the positive and negative electrode is just larger like this, in whole circuit loop, can produce larger stray inductance, thereby the switching voltage spike of switching tube and concussion can increase relatively also, will produce adverse influence to the stable of whole Circuits System.
Summary of the invention
Defective and deficiency for main power generatrix structure existence in the prior art, the utility model proposes a kind of bus connection structure of low inductance, the syndeton of this bus can effectively shorten the distance between the connection of bus positive and negative electrode, thereby effectively reduce the generation of stray inductance, make the switching voltage spike of switching tube and shake relatively stable.
The main power generatrix structure of the low inductance of the utility model, comprise positive plate, negative plate and intermediate insulation plate, the upper end of described positive and negative pole plate is respectively equipped with for the positive and negative electrode link that connects the capacitance pool module, positive and negative pole plate is provided with the positive and negative electrode port for the connecting valve tube module, and described anode connection terminal and negative pole link make the positive and negative electrode link be y-type structure to the opposite direction bending respectively and arrange.
The bending angle of described positive and negative electrode link is 30 °-60 °.
The bending angle of described positive and negative electrode link is 45 ° of the bests.
Described positive and negative electrode link is respectively equipped with several groovings makes the positive and negative electrode link cut into respectively several positive and negative electrode connexon ends.
Described switching tube module can be the switching tube module of IGBT module, MOSFET module, IGCT module, IEGT module or other types.
The utility model is designed to the junction of main power generatrix and capacitance pool bus the structure of Y type; the equivalent distances of the positive and negative electrode of bus is smaller like this; the current circuit path comparison is short; thereby the stray inductance that produces is smaller; make the switching voltage spike of switching tube and shake relatively stable; effective protection switch pipe; make the whole system performance more stable; simultaneously; main power generatrix is connected the structure that connects up and down with the capacitance pool busbar, can effectively reduce the size of the width of rack.
The beneficial effects of the utility model are:
1, the junction of main power generatrix and capacitance pool bus is designed to the structure of Y type, the equivalent distances of the positive and negative electrode of bus is smaller like this, the current circuit path comparison is short, thereby the stray inductance that produces is smaller, make the switching voltage spike of switching tube and shake relatively stable, effectively the protection switch pipe makes the whole system performance more stable;
2, main power generatrix can decompose top capacitance pool module like this at design bending angle, junction because of the pressure that manufacturing and fixing error causes, and can reduce the suffered stress of switching tube;
3, the link of main power generatrix positive and negative electrode is designed with grooving, is in order to reduce the intensity of junction copper bar bending, when the capacitance pool module produces pressure, can utilize every spontaneous distortion behind the grooving to reduce formation to switching tube stress.
Description of drawings
Fig. 1 is the existing main power generatrix structural representation that uses;
Fig. 2 is main power generatrix structural representation of the present utility model;
Fig. 3 is the side-looking structural representation of Fig. 2;
Fig. 4 is A-A sectional structure schematic diagram among Fig. 3;
Fig. 5 is use mounting structure schematic diagram of the present utility model.
Among the figure: 1, capacitance pool module; 2, main power generatrix; 21, anodal connexon end; 22, negative pole connexon end; 23, anodal port; 24, negative pole port; 25, intermediate insulation plate; 26, negative plate; 27, positive plate; 28, grooving; 21 ' positive pole; 22 ' negative pole; 3, IGBT module.
Embodiment
Shown in Fig. 2-5, the main power generatrix structure of the low inductance of the utility model, comprise positive plate 27, negative plate 26 and intermediate insulation plate 25, the upper end of positive plate 27 is provided with for the anode connection terminal that connects capacitance pool module 1, the upper end of negative plate 26 is provided with for the negative pole link that connects capacitance pool module 1, also be provided with on the positive plate 27 for the anodal port 23 that connects IGBT module 3, negative plate 26 is provided with for the negative pole port 24 that connects IGBT module 3, anode connection terminal and negative pole link just make to 45 ° of opposite direction bendings respectively, the negative pole link is y-type structure to be arranged, and just, the negative pole link is respectively equipped with several groovings 28 and just makes, the negative pole link cuts into respectively several positive connexon ends 21 and negative pole connexon end 22.
The utility model is established main power generatrix 2 and the capacitance pool bus junction of capacitance pool module 1
Count into the structure of Y type, the equivalent distances of the positive and negative electrode of bus is smaller like this, the current circuit path comparison is short, thereby the stray inductance that produces is smaller, make the switching voltage spike of IGBT module and shake relatively stable, can effectively protect the IGBT module, make the whole system performance more stable; Main power generatrix can decompose top capacitance pool module like this at design bending angle, junction because of the pressure that manufacturing and fixing error causes, can reduce the suffered stress of IGBT module; The link of main power generatrix positive and negative electrode is designed with grooving, is in order to reduce the intensity of junction copper bar bending, when the capacitance pool module produces pressure, can utilize every spontaneous distortion behind the grooving to reduce formation to IGBT module stress; Simultaneously, main power generatrix is connected the structure that connects up and down with the capacitance pool busbar, can effectively reduce the size of the width of rack.
Claims (5)
1. the main power generatrix structure of a low inductance, comprise positive plate, negative plate and intermediate insulation plate, the upper end of described positive and negative pole plate is respectively equipped with for the positive and negative electrode link that connects the capacitance pool module, positive and negative pole plate is provided with the positive and negative electrode port for the connecting valve tube module, it is characterized in that: described anode connection terminal and negative pole link make the positive and negative electrode link be y-type structure to the opposite direction bending respectively and arrange.
2. main power generatrix structure as claimed in claim 1, it is characterized in that: the bending angle of described positive and negative electrode link is 30 °-60 °.
3. main power generatrix structure as claimed in claim 2, it is characterized in that: the bending angle of described positive and negative electrode link is 45 °.
4. main power generatrix structure as claimed in claim 1, it is characterized in that: described positive and negative electrode link is respectively equipped with several groovings makes the positive and negative electrode link cut into respectively several positive and negative electrode connexon ends.
5. main power generatrix structure as claimed in claim 1, it is characterized in that: described switching tube module is IGBT module, MOSFET module, IGCT module or IEGT module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220301286 CN202713120U (en) | 2012-06-26 | 2012-06-26 | Low-inductance main power bus structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220301286 CN202713120U (en) | 2012-06-26 | 2012-06-26 | Low-inductance main power bus structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202713120U true CN202713120U (en) | 2013-01-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220301286 Expired - Lifetime CN202713120U (en) | 2012-06-26 | 2012-06-26 | Low-inductance main power bus structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202713120U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105514737A (en) * | 2015-12-01 | 2016-04-20 | 上海法腾电力科技有限公司 | Conductive bus at arc transition part of 550 electrical cabinet |
-
2012
- 2012-06-26 CN CN 201220301286 patent/CN202713120U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105514737A (en) * | 2015-12-01 | 2016-04-20 | 上海法腾电力科技有限公司 | Conductive bus at arc transition part of 550 electrical cabinet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130130 |