CN201436781U - Main structure of frequency conversion speed regulator - Google Patents
Main structure of frequency conversion speed regulator Download PDFInfo
- Publication number
- CN201436781U CN201436781U CN2009200680175U CN200920068017U CN201436781U CN 201436781 U CN201436781 U CN 201436781U CN 2009200680175 U CN2009200680175 U CN 2009200680175U CN 200920068017 U CN200920068017 U CN 200920068017U CN 201436781 U CN201436781 U CN 201436781U
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- China
- Prior art keywords
- main structure
- frequency conversion
- electric capacity
- speed regulator
- capacitor
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- Expired - Fee Related
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- Rectifiers (AREA)
Abstract
A main structure of a frequency conversion speed regulator relates to a frequency conversion speed regulator. rectifiers in the main structure are arranged in parallel. The main structure of the frequency conversion speed regulator is characterized in that a main return control capacitor of the rectifiers is averagely divided into three parts which are respectively used as UVW three phases and shorten distance between the capacitor and positive pole and negative pole of IGBT below the capacitor. A clamp is arranged on a base of each main return control capacitor, three rectification controllable silicon approach input terminals which are arranged in side by side are arranged at tail end of the main structure, and extremely approach a positive bus bar and a negative bus bar, thereby reducing inductance quantity of a DC bus bar of a main circuit, preventing high pressure generated by the inductance from punching the IGBT, and increasing system reliability. The utility model has advantages that due to adopting grouping structure, installation and maintenance are convenient, product volume is greatly reduced, and space utilization ratio of product cavity is increased.
Description
Technical field:
The utility model relates to variable-frequency governor, specifically is a kind of main structure of variable-frequency governor.
Background technology:
At present, variable-frequency governor generally includes rectifier, inverter and direct current component, wherein, rectifier converts the alternating current of input to direct current, inverter converts direct current the alternating current of required frequency to again, and the frequency converter that has also may comprise transformer and battery, wherein, transformer be used for changing voltage and can isolate input the circuit of output, battery is used for compensating the energy loss on the frequency converter internal wiring.The variable-frequency governor that occurs on the market all is that rectifier bunchiness townhouse is put, leading back control electric capacity is installed on the capacitor bottom plate side by side, placement not only takes up room excessive like this, cause with the variable-frequency governor of power bulky, and be installed in the inductance value that causes increasing the main circuit DC master row in the powerful variable-frequency governor easily, cause having reduced system reliability because of inductance produces high pressure towards wearing IGBT.
The utility model content:
It is a kind of rational in infrastructure that technical problem to be solved in the utility model is to provide, and installation and maintenance are convenient, and avoid the inductance value by DC master row, avoids having strengthened the variable-frequency governor main structure of system reliability because of inductance produces high pressure towards wearing IGBT.
The utility model for the technical scheme that the technical solution problem adopts is,
A kind of variable-frequency governor main structure with the placement in parallel of the rectifier in the main structure, is characterized in that: the master of described rectifier returns the control capacitor averaging and is divided into three partly, has acted on the UVW three-phase respectively, the spacing between shortening electric capacity and beneath IGBT are positive and negative.
Described each lead back on the base of control electric capacity clip all be installed, described clip will be led back and control electric capacity and capacitor bottom plate linking together tightly, constitute the electric capacity base.
Described electric capacity base is stress assembling in advance in the time of can be on not being installed in variable-frequency governor, has simplified installation procedure greatly, handled easily.
Tail end in main structure is provided with three rectification thyristors that are arranged side by side near input terminal as mentioned above, simultaneously very approaching with positive and negative busbar, so just reduce the inductance value of main circuit DC master row, avoided having increased system reliability because of inductance produces high pressure towards wearing IGBT.
The beneficial effect that the utility model produces is, owing to adopted packet configuration, makes convenient for installation and maintenancely, but also dwindles small product size greatly, improved the space availability ratio of product cavity.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1, a kind of variable-frequency governor main structure 1 comprises electric capacity base 2, rectifier 11 in parallel placements, and it is led back the control capacitor averaging and is divided into three partly, has acted on the UVW three-phase respectively, the spacing between shortening electric capacity and beneath IGBT are positive and negative.Each part is installed four masters respectively and is returned control electric capacity, each lead back the control electric capacity tail end on clip 21 all is installed, clip 21 inside are provided with screw, and clip 21 passes capacitor bottom plate 22 and will lead back and constitute electric capacity base 2 jointly after control electric capacity and capacitor bottom plate 22 tightening tightly links together like this.
Be stress assembling in advance when wherein electric capacity base 2 can be before not being installed in variable-frequency governor, simplified installation procedure greatly, handled easily.
Tail end in main structure is provided with three rectification thyristors that are arranged side by side near input terminal 3, simultaneously very approaching with positive and negative busbar, so just reduce the inductance value of main circuit DC master row, avoided having increased the system reliability of variable-frequency governor because of inductance produces high pressure towards wearing IGBT.
More than show and described basic principle of the present utility model and technical characterictic and major advantage.The technical staff of the industry can understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all should fall in the claimed scope of the present utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. a variable-frequency governor main structure is placed the parallel connection of the rectifier in the main structure, it is characterized in that: the master of described rectifier returns the control capacitor averaging and is divided into three partly, has acted on the UVW three-phase respectively, the spacing between shortening electric capacity and beneath IGBT are positive and negative.
2. according to the described variable-frequency governor main structure of claim 1, it is characterized in that: described each lead back on the base of control electric capacity clip all be installed, clip will be led back and control electric capacity and capacitor bottom plate linking together tightly, constitute the electric capacity base.
3. according to the described variable-frequency governor main structure of claim 1, it is characterized in that: the tail end of main structure is provided with three rectification thyristors that are arranged side by side near input terminal, while is very approaching with positive and negative busbar, so just reduces the inductance value of main circuit DC master row.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200680175U CN201436781U (en) | 2009-02-24 | 2009-02-24 | Main structure of frequency conversion speed regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200680175U CN201436781U (en) | 2009-02-24 | 2009-02-24 | Main structure of frequency conversion speed regulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201436781U true CN201436781U (en) | 2010-04-07 |
Family
ID=42373227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200680175U Expired - Fee Related CN201436781U (en) | 2009-02-24 | 2009-02-24 | Main structure of frequency conversion speed regulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201436781U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107364456A (en) * | 2016-05-12 | 2017-11-21 | 通用电气公司 | Inverter drive system, busbar and component |
| CN108768138A (en) * | 2018-07-11 | 2018-11-06 | 上海雷诺尔科技股份有限公司 | A kind of frequency converter stack bus bar component |
| US10128625B2 (en) | 2014-11-18 | 2018-11-13 | General Electric Company | Bus bar and power electronic device with current shaping terminal connector and method of making a terminal connector |
-
2009
- 2009-02-24 CN CN2009200680175U patent/CN201436781U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10128625B2 (en) | 2014-11-18 | 2018-11-13 | General Electric Company | Bus bar and power electronic device with current shaping terminal connector and method of making a terminal connector |
| CN107364456A (en) * | 2016-05-12 | 2017-11-21 | 通用电气公司 | Inverter drive system, busbar and component |
| CN107364456B (en) * | 2016-05-12 | 2020-10-27 | 通用电气全球采购有限责任公司 | Inverter driving assembly and bus bar for inverter driving assembly of vehicle |
| CN108768138A (en) * | 2018-07-11 | 2018-11-06 | 上海雷诺尔科技股份有限公司 | A kind of frequency converter stack bus bar component |
| CN108768138B (en) * | 2018-07-11 | 2023-07-11 | 上海雷诺尔科技股份有限公司 | Frequency converter laminated busbar assembly |
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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: 20100407 Termination date: 20150224 |
|
| EXPY | Termination of patent right or utility model |