CN203673000U - Built-in leakage current sensor-equipped electric power supply connector - Google Patents
Built-in leakage current sensor-equipped electric power supply connector Download PDFInfo
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- CN203673000U CN203673000U CN201320569487.6U CN201320569487U CN203673000U CN 203673000 U CN203673000 U CN 203673000U CN 201320569487 U CN201320569487 U CN 201320569487U CN 203673000 U CN203673000 U CN 203673000U
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- leakage current
- current sensor
- power supply
- electric power
- supply connector
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Abstract
The utility model discloses a built-in leakage current sensor-equipped electric power supply connector comprising a DC600V electric power supply connector and a leakage current sensor which is installed in the DC600V electric power supply connector, the leakage current sensor is integrated with the DC600V electric power supply connector, and therefore an integral whole is formed. A special kind and abnormal type magnetic balance current sensor is adopted as the leakage current sensor and comprises a primary circuit, a magnetism gathering ring, a Hall element, a secondary wire coil and an amplification circuit, wherein the leakage current sensor is mounted on a front insulation plate of a socket. The built-in leakage current sensor-equipped electric power supply connector is used for monitoring a vehicle leakage current and is capable of directly detecting difference value of an output current and an input current passing through the DC600V electric power supply connector, and an earth current generated in a vehicle electrical system can be directly measured. Through adoption of the built-in leakage current sensor-equipped electric power supply connector, the real-time value of a leakage current can be directly measured and displayed via cooperation with an external matched test instrument, and front and back positions of a fault can be determined.
Description
Technical field
The utility model relates to Electric apparatus field, while being used for locomotive to train power supply, detect leakage current, also can be for the leakage current test of railway car inside consumer, consequently promote the detection that can be used for electric power and other industrial circle power devices or equipment leakage stream.
Background technology
Because electrical equipment on passenger stock is many, ground connection occurs any equipment can cause the warning of leakage current, but will directly judge the position of leakage current, and fault vehicle is separated and is difficult to., be necessary by installing a leakage current sensor on the DC600V power-feed connector between locomotive-vehicle or vehicle-vehicle additional for this reason, coordinate outside supporting test instrumentation, directly show the instantaneous value of leakage current, and the front and back position of failure judgement.
Though the patent about connector in prior art is many, do not retrieve the integrated connector that installs a leakage current sensor on connector additional.Application number is that 200680050434.6 Chinese invention patent discloses a kind of electric connector, comprise the first plug-in unit part or socket and the second plug-in unit part or plug, can be electrically connected along the relative translation that connects axis (X) direction by plug-in unit part, it is characterized in that, described the first plug-in unit part comprises the first guide piece, described the first guide piece can coordinate with the second guide piece of the Connection Element of the second plug-in unit part, to allow Connection Element to relatively move with respect to the first plug-in unit part, described the second plug-in unit part comprises box body and elastic device, described box body comprises that the 3rd guide piece that can coordinate with Connection Element is to allow Connection Element to relatively move along being connected axis direction with respect to box body, described elastic device can impel Connection Element to relatively move with respect to box body.Application number is that 200780019522.4 Chinese invention patent discloses a kind of thin thickness and can control the new electric connector of shoestring.The electric connector of this invention possesses 2 kinds of contact elements, and by the rotation of actuator, the operating member of actuator is pressed a contact element downwards, by the stress from this contact element of, the rotation axis of actuator is moved upward.Thus, another contact element near an end of the bar-shaped portion of flying shore, be there is upward elastic deformation, according to lever principle, near the other end of the bar-shaped portion of another contact element, move downwards.Above prior art, is not the detection for train power supply leakage current, can not pass through their direct measuring vehicle leakage current instantaneous values.
utility model content
Technical problem to be solved in the utility model is to provide a kind of power-feed connector of built-in leakage current sensor of directly measuring vehicle leakage current instantaneous value.
The technical solution of the utility model is: the power-feed connector of described built-in leakage current sensor, comprise DC600V power-feed connector and leakage current sensor, described leakage current sensor is arranged in DC600V power-feed connector, and integrated with DC600V power-feed connector, forms an entirety.
Described leakage current sensor adopts extraordinary special-shaped magnetic balance current sensor; Described magnetic balance current sensor comprises former limit circuit, magnetism gathering rings 3, hall device 4, secondary coil 5 and amplifying circuit; Its measurement range be 0-500mA, working temperature be-25 ℃ ~ 120 ℃, operating voltage for ± 12VDC, precision be 1.0 grades.Described DC600V power-feed connector comprises insulcrete after insulcrete before socket, cable, Socket casing, flexible insulated hose, socket, chipware and terminal.
Described leakage current sensor is arranged on the front insulcrete of socket of DC600V power-feed connector.
The power-feed connector of described built-in leakage current sensor is for the monitoring of vehicle leakage current, the difference of output and input current on its DC600V power-feed connector that can direct-detection goes out to flow through, thus directly measure the ground current producing in vehicle electrical systems.
Adopt the utility model, coordinate outside supporting test instrumentation, can directly measure the instantaneous value that shows leakage current, and the front and back position of failure judgement.The utility model is to guarantee under the condition that original connector size, performance and mounting means etc. are constant, by improving and adjust internal part, and design a kind of magnetic balance DC current sensor of the extraordinary opposite sex, supporting being arranged on DC 600V power-feed connector, in order to the leakage current at real-time detection locomotive DC 600V power supply out connector place, judge the ground current producing due to vehicle electrical systems.
accompanying drawing explanation
Fig. 1 is the front insulcrete cross-sectional view of socket of the power-feed connector of the built-in leakage current sensor of the utility model;
Fig. 2 is the outside drawing in the power-feed connector front of the built-in leakage current sensor of the utility model;
Fig. 3 is leakage current measurement schematic diagram.
Wherein: 1, DC600V power-feed connector, 2, magnetic balance current sensor, 3, magnetism gathering rings, 4, hall device, 5, secondary coil.
embodiment
As shown in Figure 1 to Figure 2, the power-feed connector of described built-in leakage current sensor, that leakage current sensor (adopting extraordinary special-shaped magnetic balance current sensor in the present embodiment) is arranged on the front insulcrete of socket in DC600V power-feed connector, and integrated with DC600V power-feed connector, form an entirety.DC600V power-feed connector comprises insulcrete after insulcrete before socket, cable, Socket casing, flexible insulated hose, socket, chipware and terminal.The utility model can be used for the monitoring of vehicle leakage current, the difference of output and input current on its DC600V power-feed connector that can direct-detection goes out to flow through, thus directly measure the ground current producing in vehicle electrical systems.
Below the utility model and related application thereof are described in further detail.
One, the important technological parameters of magnetic balance current sensor: measurement range: 0-500mA; Working temperature :-25 ℃ ~ 120 ℃; Operating voltage: ± 12VDC; Precision: 1.0 grades.
Two, magnetic balance current sensor structure and principle
As shown in Figure 3, described magnetic balance current sensor comprises former limit circuit, magnetism gathering rings 3, hall device 4, secondary coil 5 and amplifying circuit.The principle of leakage current test adopts magnetic balance measuring principle, the magnetic field that primary current produces, and the magnetic field producing by the electric current of a secondary coil compensates, and makes hall device in magnetism gathering rings all the time in detecting the duty of zero magnetic flux.
The magnetic field that primary current I1 and I2 produce is the difference of output current magnetic flux and the back flow current magnetic flux of DC600V electric power system, row are at DC600V power-feed connector place output and poor the produced magnetic flux of back flow current, and row at the output of DC600V power-feed connector place and the poor vehicle electrical systems that is of back flow current because low the produced earth leakage of dielectric strength flows.The magnetic field intensity of primary current, along with the difference between current of output and backflow changes, compensates magnetic field, former limit by secondary coil, and the electric current of secondary coil and the difference between current on former limit are linear.Therefore, can measure output and back flow current difference, the i.e. leakage current by the DC600V electric power system in magnetism gathering rings by the electric current I s that measures secondary coil.
Three, the application of the utility model in train power supply leakage current test system
Train power supply leakage current test system adopts the power-feed connector of the built-in leakage current sensor of the utility model, the leakage current value that energy Real-time Collection locomotive DC 600V power-feed connector place is produced by vehicle, improve the accuracy of vehicle leakage current monitoring, also avoided sensor installation under car and the part fallen accident that may cause.The difference of output and input current on its DC600V power-feed connector that can direct-detection goes out to flow through, thereby directly measure and in vehicle electrical systems, produced great ground current, avoid original error that detects neutral voltage deviation calculating ground current by divider resistance, improved accuracy, security and the confidence level of the leakage current test of vehicle electrical systems insulation reduction generation.Make driver can understand in time and find to trigger the protection of locomotive DC600V electric power system because vehicle electrical systems insulation reduces; improve reliability and the security of train power supply; reduce the complaint producing due to the fault of 600V electric power system, improve the service quality of railway.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within being all included in protection domain of the present utility model.
Claims (3)
1. the power-feed connector of a built-in leakage current sensor, comprise DC600V power-feed connector (1) and leakage current sensor, it is characterized in that, described leakage current sensor is arranged in DC600V power-feed connector (1), and integrated with DC600V power-feed connector (1), form an entirety; Described DC600V power-feed connector comprises insulcrete after insulcrete before socket, cable, Socket casing, flexible insulated hose, socket, chipware and terminal; Described leakage current sensor is arranged on the front insulcrete of socket of DC600V power-feed connector.
2. the power-feed connector of built-in leakage current sensor according to claim 1, is characterized in that, described leakage current sensor adopts extraordinary special-shaped magnetic balance current sensor (2).
3. the power-feed connector of built-in leakage current sensor according to claim 2, is characterized in that, described magnetic balance current sensor comprises former limit circuit, magnetism gathering rings (3), hall device (4), secondary coil (5) and amplifying circuit; Its measurement range be 0-500mA, working temperature be-25 ℃ ~ 120 ℃, operating voltage for ± 12VDC, precision be 1.0 grades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320569487.6U CN203673000U (en) | 2013-09-13 | 2013-09-13 | Built-in leakage current sensor-equipped electric power supply connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320569487.6U CN203673000U (en) | 2013-09-13 | 2013-09-13 | Built-in leakage current sensor-equipped electric power supply connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203673000U true CN203673000U (en) | 2014-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320569487.6U Expired - Fee Related CN203673000U (en) | 2013-09-13 | 2013-09-13 | Built-in leakage current sensor-equipped electric power supply connector |
Country Status (1)
| Country | Link |
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| CN (1) | CN203673000U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104917138A (en) * | 2015-06-12 | 2015-09-16 | 杭州曙光电器有限公司 | Large creepage distance European joint structure |
| CN106640047A (en) * | 2015-10-30 | 2017-05-10 | 中石化石油工程技术服务有限公司 | Underground integrated measurement connector |
| CN107110891A (en) * | 2015-01-12 | 2017-08-29 | 伊莎贝尔努特·霍伊斯勒两合公司 | The hookup with integrated current sensors in middle pressure engineering or high pressure engineering |
| CN110187217A (en) * | 2018-11-30 | 2019-08-30 | 中航光电科技股份有限公司 | Connector for current online detection and active end thereof |
-
2013
- 2013-09-13 CN CN201320569487.6U patent/CN203673000U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107110891A (en) * | 2015-01-12 | 2017-08-29 | 伊莎贝尔努特·霍伊斯勒两合公司 | The hookup with integrated current sensors in middle pressure engineering or high pressure engineering |
| US10534020B2 (en) | 2015-01-12 | 2020-01-14 | Isabellenhütte Heusler Gmbh & Co. Kg | Medium-voltage or high-voltage coupling |
| CN104917138A (en) * | 2015-06-12 | 2015-09-16 | 杭州曙光电器有限公司 | Large creepage distance European joint structure |
| CN106640047A (en) * | 2015-10-30 | 2017-05-10 | 中石化石油工程技术服务有限公司 | Underground integrated measurement connector |
| CN110187217A (en) * | 2018-11-30 | 2019-08-30 | 中航光电科技股份有限公司 | Connector for current online detection and active end thereof |
| CN110187217B (en) * | 2018-11-30 | 2022-05-13 | 中航光电科技股份有限公司 | Connector for current online detection and active end thereof |
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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: 20140625 Termination date: 20170913 |
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| CF01 | Termination of patent right due to non-payment of annual fee |