CN202634288U - Novel frequency converter - Google Patents
Novel frequency converter Download PDFInfo
- Publication number
- CN202634288U CN202634288U CN 201220136943 CN201220136943U CN202634288U CN 202634288 U CN202634288 U CN 202634288U CN 201220136943 CN201220136943 CN 201220136943 CN 201220136943 U CN201220136943 U CN 201220136943U CN 202634288 U CN202634288 U CN 202634288U
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- Prior art keywords
- frequency converter
- terminal
- filter
- new type
- keyboard
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- Expired - Fee Related
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Abstract
The utility model discloses a novel frequency converter, which comprises a power supply, a power unit and a frequency converter body. A disconnecting switch, a breaker, a leakage protector, an AC input reactor, a contactor and an input filter are successively arranged between the power supply and the frequency converter body. An output filter and an AC output reactor are arranged between the frequency converter body and the power unit. The frequency converter body is provided with a control end terminal, a major loop terminal and a keyboard interface. Due to the adoption of the above technical scheme of the utility model, the novel frequency converter, which has the advantages of compact structure, low noise and stable running, reduces the purchase and operation cost of the system and improves the reliability of the system. Due to the additional arrangement of the leakage protector, the safety of the operating circuit is ensured. Meanwhile, the novel frequency converter has various functions and is diversified in control mode, thus is applicable to various application occasions.
Description
Technical field
The utility model relates to the frequency converter field, particularly relates to a kind of new type inverter.
Background technology
Along with developing rapidly of modern power electronics technology and Computer Control Technology, promoted the technological revolution of electric drive.Frequency converter is application of frequency conversion technology and microelectric technique, controls the electric control appliance of alternating current motor through changing machine operation supply frequency mode.
The frequency converter noise of prior art is big; Fluctuation of service, efficient is poor, and the scope of application is relatively limited to; The operation purchase cost of system is high; To the safeguard measure imperfection of function, in the course of the work can be excessive, reason such as electric leakage produces faults such as short circuit, overcurrent, overload, overvoltage, causes the stability and fail safe reduction of system because of load.
The utility model content
The technical problem that the utility model mainly solves provides a kind of new type inverter; Compact conformation, low noise, even running can reduce the buying and the operation cost of system, improve the reliability of system; Guarantee the fail safe of operating circuit; Functional diversities is controlled variation simultaneously, adapts to various application scenarios.
For solving the problems of the technologies described above; The technical scheme that the utility model adopts is: a kind of new type inverter is provided; Comprise: power supply, power set and transducer body; Set gradually isolating switch, circuit breaker, earth leakage protective device between said power supply and the transducer body, exchange input reactance device, contactor and input filter; Output filter is set and exchanges out put reactor between said transducer body and the power set, said transducer body is provided with control line end, major loop terminal and keyboard interface.
In preferred embodiment of the utility model, said input filter and output filter are electromagnetic interface filter.
In preferred embodiment of the utility model, also be connected with the radio noise filter on the said transducer body.
In preferred embodiment of the utility model, said control line end comprises many group signal I/O ends.
In preferred embodiment of the utility model, said major loop terminal comprises power input terminal, external brake unit terminal, external brake resistance terminal, external reactor terminal and inverter output terminal.
In preferred embodiment of the utility model, be connected with this keyboard, supervisory keyboard on the said keyboard interface, said supervisory keyboard and said keyboard are connected in parallel.
The beneficial effect of the utility model is: the new type inverter compact conformation of the utility model, low noise, even running; Can reduce the buying and the operation cost of system, improve the reliability of system, increase by an earth leakage protective device; Guaranteed the fail safe of operating circuit; Functional diversities is controlled variation simultaneously, adapts to various application scenarios.
Description of drawings
Fig. 1 is the structural representation of the utility model new type inverter one preferred embodiment;
The mark of each parts is following in the accompanying drawing: 1, power supply, 2, power set, 3, transducer body; 4, isolating switch, 5, circuit breaker, 6, earth leakage protective device; 7, exchange the input reactance device, 8, contactor, 9, input filter; 10, output filter, 11, exchange out put reactor, 12, the radio noise filter.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiment of the utility model is set forth in detail, thereby the protection range of the utility model is made more explicit defining so that advantage of the utility model and characteristic can be easier to it will be appreciated by those skilled in the art that.
See also Fig. 1, the utility model embodiment comprises:
A kind of new type inverter comprises: power supply 1, power set 2 and transducer body 3.Set gradually isolating switch 4, circuit breaker 5, earth leakage protective device 6 between said power supply 1 and the transducer body 3, exchange input reactance device 7, contactor 8 and input filter 9, output filter 10 is set and exchanges out put reactor 11 between said transducer body 3 and the power set 2.
The power set 2 of the utility model can be motor, and contactor 8 can be electromagnetic contactor, and circuit breaker 5 is a non-fuse breaker.Said electromagnetic contactor be used for when the transducer body fault, cutting off the electricity supply and prevent power down and fault after restart, non-fuse breaker is used for the fault current of fast shut-off frequency converter and prevents frequency converter and line fault causes power failure.Isolating switch 4 has guaranteed that as break-up device the personal safety when maintenance of equipment is cut off the power supply with forcing.
All there are electrostatic capacitance over the ground in frequency converter inside, motor interior and input and output lead-in wire, so the frequency converter Ground leakage current is bigger, after circuit breaker 5, installs fail safe and reliability that earth leakage protective device 6 has been protected converter circuit work additional.
When power supply is not enough, should set up one at the input side of transducer body 3 and exchange input reactance device 7, exchange the power factor that input reactance device 7 can improve input side.
The input of said transducer body 3 is provided with input filter 9, and the output of said transducer body 3 connects output filter 10.Input filter 9 is an electromagnetic interface filter with output filter 10.Frequency signal access arrangement when the low-pass filter circuit that electromagnetic interface filter normally is made up of series reactor and shunt capacitor, its effect are permission equipment operate as normal, and the interference signal of high frequency is had bigger inhibition.
When the line of transducer body 3 and power set 2 time greater than 50 meters, should install one and exchange out put reactor 11, can reduce leakage current and the useful life that increases power set 2.
Also be connected with radio noise filter 12 on the said transducer body 3, it can be used to suppress the conduction of the electromagnetic interference noise that frequency converter produces, and also can suppress the interference to this frequency converter of extraneous radio interference and temporary impact, surge.
Said transducer body 3 is provided with control line end, major loop terminal and keyboard interface, and said control line end comprises many group signal I/O ends.Said major loop terminal comprises power input terminal, external brake unit terminal, external brake resistance terminal, external reactor terminal and inverter output terminal.
Be connected with this keyboard, supervisory keyboard on the said keyboard interface, said supervisory keyboard and said keyboard are connected in parallel.Between said supervisory keyboard and said keyboard free translation function is arranged, easy to operate, flexible, the interactive switching controls of two keyboards is applicable to multiple different occasion.
The beneficial effect of the new type inverter of the utility model is:
Compact conformation, low noise, even running can reduce the buying and the operation cost of system, improve the reliability of system, have increased by an earth leakage protective device, have guaranteed the fail safe of operating circuit, functional diversities simultaneously, and the control variation adapts to various application scenarios.
The above is merely the embodiment of the utility model; Be not thus the restriction the utility model claim; Every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the utility model.
Claims (6)
1. new type inverter; Comprise: power supply, power set and transducer body; It is characterized in that; Set gradually isolating switch, circuit breaker, earth leakage protective device between said power supply and the transducer body, exchange input reactance device, contactor and input filter, output filter is set and exchanges out put reactor between said transducer body and the power set, said transducer body is provided with control line end, major loop terminal and keyboard interface.
2. new type inverter according to claim 1 is characterized in that, said input filter and output filter are electromagnetic interface filter.
3. new type inverter according to claim 1 is characterized in that, also is connected with the radio noise filter on the said transducer body.
4. new type inverter according to claim 1 is characterized in that, said control line end comprises many group signal I/O ends.
5. new type inverter according to claim 1 is characterized in that, said major loop terminal comprises power input terminal, external brake unit terminal, external brake resistance terminal, external reactor terminal and inverter output terminal.
6. new type inverter according to claim 1 is characterized in that, is connected with this keyboard, supervisory keyboard on the said keyboard interface, and said supervisory keyboard and said keyboard are connected in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220136943 CN202634288U (en) | 2012-04-01 | 2012-04-01 | Novel frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220136943 CN202634288U (en) | 2012-04-01 | 2012-04-01 | Novel frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202634288U true CN202634288U (en) | 2012-12-26 |
Family
ID=47387430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220136943 Expired - Fee Related CN202634288U (en) | 2012-04-01 | 2012-04-01 | Novel frequency converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202634288U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104767391A (en) * | 2015-04-21 | 2015-07-08 | 贾晓宏 | Controllable frequency converter |
| CN109649998A (en) * | 2019-02-01 | 2019-04-19 | 中国神华能源股份有限公司 | Sealing-tape machine load monitoring and control system are adopted by company |
| CN111697550A (en) * | 2020-04-29 | 2020-09-22 | 宁波宏大电梯有限公司 | Main power supply loop for escalator control system |
-
2012
- 2012-04-01 CN CN 201220136943 patent/CN202634288U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104767391A (en) * | 2015-04-21 | 2015-07-08 | 贾晓宏 | Controllable frequency converter |
| CN109649998A (en) * | 2019-02-01 | 2019-04-19 | 中国神华能源股份有限公司 | Sealing-tape machine load monitoring and control system are adopted by company |
| CN111697550A (en) * | 2020-04-29 | 2020-09-22 | 宁波宏大电梯有限公司 | Main power supply loop for escalator control system |
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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: 20121226 Termination date: 20160401 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |