CN2753054Y - AC frequency transformer with anti-misconnecting protection function - Google Patents
AC frequency transformer with anti-misconnecting protection function Download PDFInfo
- Publication number
- CN2753054Y CN2753054Y CN 200420083070 CN200420083070U CN2753054Y CN 2753054 Y CN2753054 Y CN 2753054Y CN 200420083070 CN200420083070 CN 200420083070 CN 200420083070 U CN200420083070 U CN 200420083070U CN 2753054 Y CN2753054 Y CN 2753054Y
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- CN
- China
- Prior art keywords
- contactor
- transducer
- coils
- alternating
- protection function
- 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 - Fee Related
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Abstract
The utility model relates to the technological field of electrotechnics, particularly an alternating-current transducer. An alternating-current contactor is connected with the position between an inversing module of the transducer and wire connecting terminals, and coils of the alternating-current contactor are controlled by input voltage of an inverter. Because of using the structure, when wire connecting is correct, the coils of the contactor obtain electricity, and contacts of the coils are closed so as to enable the normal output of the transducer not to be affected; even if the situation of wire connecting error is generated, because of the coils of the contactor lose electricity, the contacts are broken off, high voltage does not affect the inversing module of the transducer, and thus, the phenomenon of damaging the transducer is avoided.
Description
Technical field:
The utility model relates to electrical technology field, especially relates to AC converter.
Background technology:
AC converter has a wide range of applications at industrial circle, the AC converter of seeing from the market, and some safeguard measures that embody in its circuit design (as overcurrent, overvoltage, under-voltage etc.) are fairly perfect.But it is inconsiderate to damage phenomenon for the frequency converter that because of carelessness the power line misconnection is caused to the output of frequency converter because of the user that often occurs in the practice, has caused unnecessary loss and trouble to the manufacturing enterprise and the user of AC converter.
Summary of the invention:
The purpose of this utility model provides a kind of AC converter with anti-error wiring protection function with regard to being at the deficiencies in the prior art part, though the user because of carelessness with the power line misconnection during to the output of frequency converter, this AC converter also is unlikely to damage.
For achieving the above object, the utility model is connected with A.C. contactor between the inversion module of frequency converter and binding post, and the coil of this A.C. contactor is controlled by the input voltage of inverter.
The beneficial effects of the utility model are: owing to adopt said structure, when wiring was correct, contactor coil got electric, and its closing of contact is not affected the normal output of frequency converter; And when making the situation that wiring error occurs at once, because the coil losing electricity of contactor, the contact disconnects, and high voltage does not also exert an influence to the inversion module of frequency converter, thereby the phenomenon of having avoided frequency converter to damage takes place.
Description of drawings:
Below in conjunction with accompanying drawing the utility model is described further
Accompanying drawing 1 is circuit theory diagrams of the present utility model
Embodiment:
See shown in the accompanying drawing 1: AC converter of the present utility model has inversion module 10 and three binding posts (R, S, T) and three lead-out terminals (U, V, W).Inversion module 10 and wherein be provided with A.C. contactor 20 between two binding posts (R, S), the coil KM of this A.C. contactor 20 is controlled by input voltage, and 21 of three contacts of A.C. contactor 20 are connected in respectively on three lead-out terminals (U, V, W) of frequency converter.Like this, when wiring was correct, contactor coil KM got electric, and its contact 21 closures are not affected the normal output of frequency converter; And when making the situation that wiring error occurs at once (when as mistake the 380V power line being inserted inverter output terminal), because contactor coil KM dead electricity, contact 21 disconnects, and high voltage does not exert an influence to the inversion module 10 of frequency converter yet, has very good result of use.
Claims (1)
1. have the AC converter of anti-error wiring protection function, it is characterized in that: be connected with A.C. contactor between the inversion module of frequency converter and binding post, the coil of this A.C. contactor is controlled by the input voltage of frequency converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420083070 CN2753054Y (en) | 2004-08-20 | 2004-08-20 | AC frequency transformer with anti-misconnecting protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420083070 CN2753054Y (en) | 2004-08-20 | 2004-08-20 | AC frequency transformer with anti-misconnecting protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2753054Y true CN2753054Y (en) | 2006-01-18 |
Family
ID=35914464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420083070 Expired - Fee Related CN2753054Y (en) | 2004-08-20 | 2004-08-20 | AC frequency transformer with anti-misconnecting protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2753054Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356513A (en) * | 2015-12-14 | 2016-02-24 | 阳光电源股份有限公司 | Inverter wiring error self-adaption method as well as device and application of method and photovoltaic system |
| CN110247387A (en) * | 2019-05-31 | 2019-09-17 | 武汉华中数控股份有限公司 | Servo-driven module with fault-tolerance |
-
2004
- 2004-08-20 CN CN 200420083070 patent/CN2753054Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356513A (en) * | 2015-12-14 | 2016-02-24 | 阳光电源股份有限公司 | Inverter wiring error self-adaption method as well as device and application of method and photovoltaic system |
| CN105356513B (en) * | 2015-12-14 | 2017-09-12 | 阳光电源股份有限公司 | Inverter wiring error adaptive approach and its device, application, photovoltaic system |
| CN110247387A (en) * | 2019-05-31 | 2019-09-17 | 武汉华中数控股份有限公司 | Servo-driven module with fault-tolerance |
| CN110247387B (en) * | 2019-05-31 | 2021-03-16 | 武汉华中数控股份有限公司 | Servo driving module with fault tolerance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060118 Termination date: 20090921 |