CN203984224U - IGBT modularity frequency converter - Google Patents
IGBT modularity frequency converter Download PDFInfo
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- CN203984224U CN203984224U CN201420318012.4U CN201420318012U CN203984224U CN 203984224 U CN203984224 U CN 203984224U CN 201420318012 U CN201420318012 U CN 201420318012U CN 203984224 U CN203984224 U CN 203984224U
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- igbt
- frequency converter
- copper bar
- modularity
- module
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Abstract
The utility model discloses a kind of IGBT modularity frequency converter, comprise a plurality of IGBT modules, each IGBT module comprises signal transmission bus, power panel, adaptation board, IGBT, electric capacity, input copper bar interface and output copper bar interface; Input copper bar interface in IGBT module is to electric capacity, the path from electric capacity to IGBT equates again, and each IGBT equates to the path of output copper bar interface; In IGBT module, be provided with fan; Power panel in each IGBT module is separate.The utility model is by IGBT modularity; integral body has reduced the volume of frequency converter; by layout symmetry design, solve many parallel current-sharing problems of IGBT; independent cooling system reduces heat conduction between module; independent current source increases IGBT stability; play the effect of protection IGBT, in addition, modularity is also for production, the test of frequency converter provide convenience.
Description
Technical field
The utility model relates to frequency converter, relates in particular to the modular frequency converter of a kind of IGBT.
Background technology
In frequency converter field, high-power frequency converter uses IGBT (Insulated Gate BipolarTransistor, insulated gate bipolar transistor) parallel technology to complete increase electric current, evenly heat dispersion, dexterous layout, lifting frequency converter cost performance conventionally.There is following defect in current frequency converter: 1) volume of frequency converter is excessive; 2) there is equal flow problem in many parallel connections of IGBT; 3) between IGBT, there is Heat Conduction Problems; 4) a plurality of IGBT share a power supply, affect stability.
Utility model content
The utility model aim to provide a kind of can the whole volume that reduces frequency converter, solve many parallel current-sharing problems of IGBT, reduce heat conduction between module, increase the IGBT modularity frequency converter of IGBT stability.
The technical solution of the utility model is as follows:
An IGBT modularity frequency converter, comprises a plurality of IGBT modules, and each IGBT module comprises signal transmission bus, power panel, 4 adaptation boards, 4 IGBT, electric capacity, 2 input copper bar interfaces and 1 output copper bar interface; Described signal transmission bus connects power panel, described power panel provides power supply for 4 adaptation boards and 4 IGBT, described 4 adaptation boards connect respectively and drive 4 IGBT, described 4 IGBT parallel connections, described 2 input copper bar interfaces are connected respectively to the input of 4 IGBT in parallel through electric capacity, the output of 4 IGBT in parallel is connected to output copper bar interface.
Its further technical scheme is: in described IGBT module 2 input copper bar interfaces are to electric capacity, the path from electric capacity to IGBT is equal again.
Its further technical scheme is: each IGBT in described IGBT module equates to the path of output copper bar interface.
Its further technical scheme is: in described IGBT module, be provided with fan.
Its further technical scheme is: the power panel in described each IGBT module is separate.
Useful technique effect of the present utility model is:
The utility model is by IGBT modularity; integral body has reduced the volume of frequency converter; by layout symmetry design, solve many parallel current-sharing problems of IGBT; independent cooling system reduces heat conduction between module; independent current source increases IGBT stability; play the effect of protection IGBT, in addition, modularity is also for production, the test of frequency converter provide convenience.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of IGBT module.
Fig. 2 is the structure chart of a plurality of IGBT modules in frequency converter.
Fig. 3 is the structure chart of single IGBT module.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further.
Fig. 1 shows the circuit theory diagrams of IGBT module.As shown in Figure 1, input copper bar interface PN is busbar voltage after rectification, is connected to respectively the input of 4 IGBT in parallel through electric capacity, the output that output copper bar interface OUT is IGBT.Independently power panel (Power Board) is that 4 adaptation boards (AdapterBoard) and 4 IGBT provide power supply, and adaptation board (Adapter Board) is for driving IGBT.CON1 is signal transmission bus, is connected with power panel (Power Board).
The components and parts that form above circuit are commercial goods.
As shown in Figure 2, frequency converter of the present utility model comprises a plurality of above-mentioned IGBT modules, and in the embodiment of Fig. 2, this frequency converter consists of 3 separate IGBT modules, and the structure of single IGBT module wherein as shown in Figure 3.
See Fig. 3, the structure of IGBT module:
1) adopt IGBT current-sharing design, by design, input the symmetry of copper bar PN, electric current is equated from input copper bar interface (electric current two route P are to N) to capacitance path, then equate from electric capacity inflow IGBT path.The lamination design of input copper bar PN, can reduce its stray inductance, improves electric current dynamic effect.Output copper bar is used large tree type symmetry to make each IGBT identical to the path of output.Symmetric design makes IGBT module when work, and the electric current that each IGBT flows through equates.
2) have independent cooling system, by directly increase fan in IGBT module, can make IGBT heat radiation evenly, and between IGBT module, heat energy is non-interference, complete machine can local overheating.
3) there is independent current source and driving, between IGBT module, use independent current source, not only solve the problem of power source loads ability, can also reduce the interference between each phase IGBT module, accomplish at utmost to isolate.Every IGBT is furnished with independently adaptation board, can reduce IGBT self parameter to whole impact.
In sum, the utility model is by the modularity of IGBT, more makes frequency converter on making, simplify, for more than 4 IGBT, have better current-sharing effect, reduce IGBT self parameter and the impact of module, separate fan are improved to radiating effect and do not affect module and the hot conduction of module, independent current source and driving make single armed module more stable.
Above-described is only preferred implementation of the present utility model, and the utility model is not limited to above embodiment.Be appreciated that the oher improvements and changes that those skilled in the art directly derive or associate under the prerequisite that does not depart from spirit of the present utility model and design, within all should thinking and being included in protection range of the present utility model.
Claims (5)
1. an IGBT modularity frequency converter, it is characterized in that: each frequency converter comprises a plurality of IGBT modules, each IGBT module comprises signal transmission bus, power panel, 4 adaptation boards, 4 IGBT, electric capacity, 2 input copper bar interfaces and 1 output copper bar interface; Described signal transmission bus connects power panel, described power panel provides power supply for 4 adaptation boards and 4 IGBT, described 4 adaptation boards connect respectively and drive 4 IGBT, described 4 IGBT parallel connections, described 2 input copper bar interfaces are connected respectively to the input of 4 IGBT in parallel through electric capacity, the output of 4 IGBT in parallel is connected to output copper bar interface.
2. IGBT modularity frequency converter according to claim 1, is characterized in that: 2 input copper bar interfaces in described IGBT module are to electric capacity, the path from electric capacity to IGBT is equal again.
3. IGBT modularity frequency converter according to claim 1, is characterized in that: each IGBT in described IGBT module equates to the path of output copper bar interface.
4. IGBT modularity frequency converter according to claim 1, is characterized in that: in described IGBT module, be provided with fan.
5. IGBT modularity frequency converter according to claim 1, is characterized in that: the power panel in described each IGBT module is separate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420318012.4U CN203984224U (en) | 2014-06-13 | 2014-06-13 | IGBT modularity frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420318012.4U CN203984224U (en) | 2014-06-13 | 2014-06-13 | IGBT modularity frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203984224U true CN203984224U (en) | 2014-12-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420318012.4U Expired - Fee Related CN203984224U (en) | 2014-06-13 | 2014-06-13 | IGBT modularity frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203984224U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210036646A1 (en) * | 2018-01-23 | 2021-02-04 | Plecko Co., Ltd. | Motor simulator |
| CN113075980A (en) * | 2021-03-26 | 2021-07-06 | 山东英信计算机技术有限公司 | Heat dissipation and power supply module and power supply frame |
-
2014
- 2014-06-13 CN CN201420318012.4U patent/CN203984224U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210036646A1 (en) * | 2018-01-23 | 2021-02-04 | Plecko Co., Ltd. | Motor simulator |
| US11901846B2 (en) * | 2018-01-23 | 2024-02-13 | Plecko Co., Ltd. | Motor emulator |
| CN113075980A (en) * | 2021-03-26 | 2021-07-06 | 山东英信计算机技术有限公司 | Heat dissipation and power supply module and power supply frame |
| CN113075980B (en) * | 2021-03-26 | 2023-03-10 | 山东英信计算机技术有限公司 | Heat dissipation and power supply module and power supply frame |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20190613 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |