CN201577024U - Low-voltage frequency converter - Google Patents
Low-voltage frequency converter Download PDFInfo
- Publication number
- CN201577024U CN201577024U CN2009203506522U CN200920350652U CN201577024U CN 201577024 U CN201577024 U CN 201577024U CN 2009203506522 U CN2009203506522 U CN 2009203506522U CN 200920350652 U CN200920350652 U CN 200920350652U CN 201577024 U CN201577024 U CN 201577024U
- Authority
- CN
- China
- Prior art keywords
- frequency converter
- radiator
- voltage frequency
- inversion module
- rectification module
- 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 - Lifetime
Links
Images
Landscapes
- Rectifiers (AREA)
Abstract
The utility model relates to a low-voltage frequency converter, belonging to the field of semiconductor switches. The low-voltage frequency converter solves the problems that the existing low-voltage frequency converter has unscientific structural design, poor electric property and low assembly efficiency, thus wasting raw materials, being inconvenient for later period of processing and maintenance as well as not simple and attractive enough, and the like. An input terminal of the low-voltage frequency converter is positioned on the top of the frequency converter; a centrifugal fan, an equalizing resistor, a rectifier module, a DC capacitor, an absorption capacitor, an inversion module, a current sensor and an output terminal are sequentially arranged under the input terminal from top to bottom; a complex cascade bus is closely covered on the DC capacitor, one end of the complex cascade bus is connected with the output of the rectifier module, and the other end thereof is connected with an input end of the inversion module; a radiator of the rectifier module is arranged on a base plate of the rectifier module; and a radiator of the inversion module is positioned on the base plate of the inversion module. The low-voltage frequency converter has simple, optimized and reasonable structure, good electric properties, convenient assembly and manufacture, raw material conservation, low device cost and high processing and maintaining efficiency, and is simple and attractive.
Description
Technical field
The utility model relates to low voltage frequency converter, belongs to the semiconductor switch field, is a kind of power-converting device.
Background technology
Low voltage frequency converter in the market, circuit topological structure mainly adopt the friendship orthogonal way, are about to alternating current and are input to rectification module, rectification is through the filtering of intermediate dc link behind the direct current, being input to inversion module again, is alternating current output with dc inverter, is used to control motor.And the structural design of low voltage frequency converter is varied, and different topology layouts has very big influence for the circuit distributed constant of frequency converter, electromagnetic interference etc.Irrational mix designs, and not only influences the electric property of frequency converter, reduces efficiency of assembling, causes waste of raw materials, and causes post-production to safeguard inconvenience, also influences whole succinct, aesthetic measure simultaneously.
The utility model content
The frequency converter electric property that causes in order to overcome existing low voltage frequency converter irrational mix design is poor, efficiency of assembling is low, waste of raw materials, and post-production is safeguarded inconvenience, also whole deficiencies such as succinct, aesthetic measure of influence simultaneously, the purpose of this utility model is: provide a kind of simpler, optimize, reasonably frequency changer design, satisfying under the prerequisite of electric property, be convenient to assembly production, save material, reduce installation cost, improve the processing maintenance efficiency, strengthen the overall appearance degree of frequency converter.
The technical scheme that its technical problem that solves the utility model adopts is as follows:
A kind of low voltage frequency converter, comprise input terminal, centrifugal blower, grading resistor, rectification module, rectification module radiator, composite laminate bus, dc capacitor, absorption electric capacity, inversion module radiator, inversion module, current sensor, outlet terminal, input terminal is arranged at the frequency converter top, and the below of input terminal sets gradually centrifugal blower, grading resistor, rectification module, dc capacitor, absorption electric capacity, inversion module, current sensor, outlet terminal from top to bottom; The composite laminate bus tightly is overlying on the capacitance group of a plurality of dc capacitors compositions, and an end connects the output of rectification module, and an end is connected with the input of inversion module; The rectification module radiator is arranged on the substrate of rectification module; The inversion module radiator is arranged on the substrate of inversion module.
Each the rectification module radiator all substrate of the rectification module corresponding with it fits tightly, and each the inversion module radiator all substrate of the inversion module corresponding with it fits tightly.
Grading resistor fits tightly on the rectification module radiator.
Adopt the air draught type centrifugal blower that a plurality of radiators are cooled off.
Centrifugal blower adopts air channel in parallel mode that the inversion module radiator is cooled off; Adopt air channel in parallel mode that the rectification module radiator is cooled off; Adopt series connection air channel mode that inversion module radiator and rectification module radiator are cooled off.
A plurality of dc capacitors are centralized and arrange.
The rectification module radiator adopts monobasal blade inserting aluminium radiator.
The inversion module radiator adopts monobasal blade inserting aluminium radiator.
The composite laminate bus adopts positive bus-bar, neutral bus, three layers of parallel stacked of negative busbar to form, and separates by insulating material between the adjacent two-layer bus.
The utility model adopts that air draught type centrifugal blower, air channel in parallel, centralized electric capacity are arranged, a plurality of radiator type of cooling, monobasal blade inserting aluminium radiator, ac bus go out under enterprising, and design such as composite laminate bus, has the following advantages:
The air draught type centrifugal blower, more obvious to the cooling effect of radiator.
Adopt air channel in parallel, can guarantee to enter air quantity, the intake air temperature unanimity of each inversion or rectification module radiator, thereby make each radiator pair consistent with the radiating effect of its corresponding inversion or rectification module.
Adopt centralized electric capacity arrangement mode, can effectively reduce the bus consumption, save the frequency converter space, increase the overall appearance degree.
Adopt a plurality of radiator types of cooling, not only help the assembling of processing and fabricating, rectification and the inversion module of radiator, and, effectively save material, reduce equipment cost satisfying under the prerequisite of heat dispersion.
Ac bus adopts the enterprising design that goes out down, and enterprising mode is convenient to be connected with public ac bus, and go out mode down and be convenient to the user and be connected with motor by the underground cable passage, thus minimizing bus consumption, the saving cost.
Adopt monobasal blade inserting aluminium radiator, not only can satisfy rectification and inversion module heat dispersion, thermal capacity requirement, and processing and fabricating is simple, with low cost.
Adopt the composite laminate bus, can effectively reduce the circuit stray inductance, protection rectification and inversion module are avoided transient overvoltage and are damaged.
This structure is particularly useful for the low voltage frequency converter in the 200-400kW power bracket.
Description of drawings
Fig. 1 is a front view of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments, but not as to qualification of the present utility model.
Provide a most preferred embodiment below:
A kind of low voltage frequency converter, comprise input terminal 1, centrifugal blower 2, grading resistor 3, rectification module 4, rectification module radiator 5, composite laminate bus 6, dc capacitor 7, absorb electric capacity 8, inversion module radiator 9, inversion module 10, current sensor 11, outlet terminal 12, input terminal 1 is arranged at the frequency converter top, sets gradually centrifugal blower 2, grading resistor 3, rectification module 4, dc capacitor 7 from top to bottom below input terminal 1, absorbs electric capacity 8, inversion module 10, current sensor 11, outlet terminal 12; Composite laminate bus 6 tightly is overlying on the capacitance group of a plurality of dc capacitors 7 compositions, and an end connects the output of rectification module 4, and an end is connected with the input of inversion module 10; Rectification module radiator 5 is arranged on the substrate of rectification module 4; Inversion module radiator 9 is arranged on the substrate of inversion module 10.
Grading resistor 3 fits tightly on rectification module radiator 5, is connected by bus with rectification module 4.
The substrate of the rectification module 4 that each rectification module radiator 5 is all corresponding with it fits tightly, and the substrate of the inversion module 10 that each inversion module radiator 9 is all corresponding with it fits tightly.
A plurality of dc capacitors 7 are centralized symmetry arrangement.
It is in parallel with inversion module 10 by bus to absorb electric capacity 8.
Current sensor 11 is socketed on the bus at outlet terminal 12 places.
Composite laminate bus 4 employing positive bus-bars, neutral bus, three layers of sheet copper of negative busbar parallel stacked successively form, and separate by insulating material between the adjacent two-layer bus.
The bus that is adopted among the embodiment also can other have the connecting line of conducting function for lead, cable etc.
Above-described embodiment, the utility model a kind of in the embodiment more preferably just, the common variation that those skilled in the art carries out in the technical solutions of the utility model scope and replacing all should be included in the protection range of the present utility model.
Claims (8)
1. low voltage frequency converter, it is characterized in that: comprise input terminal, centrifugal blower, grading resistor, rectification module, rectification module radiator, composite laminate bus, dc capacitor, absorption electric capacity, inversion module radiator, inversion module, current sensor, outlet terminal, input terminal is arranged at the frequency converter top, and the below of input terminal sets gradually centrifugal blower, grading resistor, rectification module, dc capacitor, absorption electric capacity, inversion module, current sensor, outlet terminal from top to bottom; The composite laminate bus tightly is overlying on the capacitance group of a plurality of dc capacitors compositions, and an end connects the output of rectification module, and an end is connected with the input of inversion module; The rectification module radiator is arranged on the substrate of rectification module; The inversion module radiator is arranged on the substrate of inversion module.
2. low voltage frequency converter according to claim 1 is characterized in that: described each the rectification module radiator all substrate of the rectification module corresponding with it fits tightly; Each the inversion module radiator all substrate of the inversion module corresponding with it fits tightly.
3. low voltage frequency converter according to claim 1 is characterized in that: described grading resistor fits tightly on the rectification module radiator.
4. low voltage frequency converter according to claim 1 is characterized in that: described centrifugal blower is the air draught type centrifugal blower.
5. low voltage frequency converter according to claim 4 is characterized in that: described centrifugal blower adopts air channel in parallel mode that the inversion module radiator is cooled off; Adopt air channel in parallel mode that the rectification module radiator is cooled off; Adopt series connection air channel mode that inversion module radiator and rectification module radiator are cooled off.
6. low voltage frequency converter according to claim 1 is characterized in that: described a plurality of dc capacitors are centralized and arrange.
7. low voltage frequency converter according to claim 1 is characterized in that: described rectification module radiator adopts monobasal blade inserting aluminium radiator; Described inversion module radiator adopts monobasal blade inserting aluminium radiator.
8. according to the described low voltage frequency converter of claim 1, it is characterized in that: described composite laminate bus adopts positive bus-bar, neutral bus, three layers of parallel stacked of negative busbar to form, and separates by insulating material between the adjacent two-layer bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203506522U CN201577024U (en) | 2009-12-28 | 2009-12-28 | Low-voltage frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203506522U CN201577024U (en) | 2009-12-28 | 2009-12-28 | Low-voltage frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201577024U true CN201577024U (en) | 2010-09-08 |
Family
ID=42696895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203506522U Expired - Lifetime CN201577024U (en) | 2009-12-28 | 2009-12-28 | Low-voltage frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201577024U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102025261A (en) * | 2010-10-14 | 2011-04-20 | 国网电力科学研究院 | Air-cooled converter power module system |
| CN102739019A (en) * | 2011-04-08 | 2012-10-17 | Abb公司 | Frequency converter unit |
| WO2014187064A1 (en) * | 2013-05-22 | 2014-11-27 | Abb技术有限公司 | Power module for medium and high-voltage frequency converter and frequency converter comprising same |
-
2009
- 2009-12-28 CN CN2009203506522U patent/CN201577024U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102025261A (en) * | 2010-10-14 | 2011-04-20 | 国网电力科学研究院 | Air-cooled converter power module system |
| CN102025261B (en) * | 2010-10-14 | 2013-04-10 | 国网电力科学研究院 | Air-cooled converter power module system |
| CN102739019A (en) * | 2011-04-08 | 2012-10-17 | Abb公司 | Frequency converter unit |
| CN102739019B (en) * | 2011-04-08 | 2014-12-31 | Abb公司 | Frequency converter unit |
| US9231490B2 (en) | 2011-04-08 | 2016-01-05 | Abb Technology Oy | Frequency converter unit |
| WO2014187064A1 (en) * | 2013-05-22 | 2014-11-27 | Abb技术有限公司 | Power module for medium and high-voltage frequency converter and frequency converter comprising same |
| US10707768B2 (en) | 2013-05-22 | 2020-07-07 | Abb Schweiz Ag | Power module for medium and high-voltage frequency converter and frequency converter comprising same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201577024U (en) | Low-voltage frequency converter | |
| CN102882408A (en) | Power unit of inverter | |
| CN204257408U (en) | Self-healing ac filter capacitor | |
| CN202019316U (en) | Solar inverter power module of solar inverter | |
| CN205944847U (en) | Protection device of prepackage type transformer substation | |
| CN203339972U (en) | Sliding-rail type IGBT water-cooling power module | |
| CN201726303U (en) | High-power high-voltage inverter power unit | |
| CN206422434U (en) | A kind of high-tension switch cabinet with heat sinking function | |
| CN203352457U (en) | Power module unit of energy storage converter | |
| CN202696495U (en) | IGBT (insulated gate bipolar transistor) low-voltage inverter | |
| CN208001238U (en) | A kind of cabinet for the major loop being equipped with air compressor machine special converter | |
| CN205070817U (en) | Novel solar energy grid -connected inverter | |
| CN201577032U (en) | Low-voltage frequency conversion device | |
| CN203617913U (en) | Off-grid inverter bus bar component | |
| CN110198129A (en) | A kind of powerful synchronous rectification high frequency switch power | |
| CN204859003U (en) | Intensive low pressure fairing | |
| CN205051559U (en) | Wind power converter cabinet | |
| CN203840212U (en) | High-performance IGBT low-voltage inversion unit | |
| CN204425175U (en) | High voltage transducer power unit | |
| CN201726308U (en) | Ultrahigh-power, high-voltage and variable-frequency soft-start power unit | |
| CN204046403U (en) | Based on the wind cooling power unit of IGBT | |
| CN102916601A (en) | Photovoltaic inversion unit and triphase photovoltaic inversion device | |
| CN205540556U (en) | Computer adaptation power | |
| CN203289333U (en) | Inverter device | |
| CN203434451U (en) | Combined-type SVG power cabinet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CISDI ELECTRICAL TECHNOLOGY CO., LTD. Free format text: FORMER NAME: MCC SINGROCK ELECTRIC TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 100176 room B133, No. 18 West South Road, Beijing economic and Technological Development Zone Patentee after: CISDI Electrical Technology Co., Ltd. Address before: 100176 room B133, No. 18 West South Road, Beijing economic and Technological Development Zone Patentee before: MCC Singrock Electric Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100908 |