CN102680760A - High- and low- voltage signal isolation transmission device special for contact network inspection trolley - Google Patents
High- and low- voltage signal isolation transmission device special for contact network inspection trolley Download PDFInfo
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- CN102680760A CN102680760A CN2012101528896A CN201210152889A CN102680760A CN 102680760 A CN102680760 A CN 102680760A CN 2012101528896 A CN2012101528896 A CN 2012101528896A CN 201210152889 A CN201210152889 A CN 201210152889A CN 102680760 A CN102680760 A CN 102680760A
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Abstract
The invention discloses a high- and low- voltage signal isolation transmission device special for a contact network inspection trolley. The isolation transmission device comprises a vertical optical fiber insulator, wherein the lower end of the optical fiber insulator is connected with a low-voltage side assembly box; the upper end of the optical fiber insulator is connected with a high-voltage side assembly box; the low-voltage side assembly box is fixedly arranged on the top of the inspection trolley; a low-voltage side optical fiber air plug and a high-voltage side optical fiber air plug are fixedly arranged on the side walls of the low-voltage side assembly box and the high-voltage side assembly box respectively; four signal transmission optical fibers are arranged in the optical fiber insulator; the upper ends of the signal transmission optical fibers are connected to the high-voltage side optical fiber air plug; and the lower ends of the signal transmission optical fibers are connected to the low-voltage side optical fiber air plug. By adopting a combined encapsulation technology that the optical fiber air plugs are combined with the optical fiber insulator and the PEEK high-intensity insulation assembly boxes, isolation transmission of high- and low- voltage signals is realized; and the isolation transmission device is convenient to maintain and replace, flashover of equipment is avoided, the creepage distance is increased, and the problems in the prior art are solved.
Description
Technical field
The invention relates to high-low pressure Signal Spacing transmission equipment in a kind of Contact Line Detection System, relate in particular to the special-purpose high-low pressure Signal Spacing of a kind of Contact Line Detection car transmitting device.
Background technology
The special-purpose high-low pressure Signal Spacing of Contact Line Detection car transmission technology is one of gordian technique in the Contact Line Detection System, and major function is the compartment collecting device that transfers to the micro-signal of in contact net 25kv hyperbaric environment, gathering zero potential.This technology has experienced the process of wireless optical transmission and insulation tube insertion fiber direct connection, and is final, and the technical scheme of widespread use is the scheme that insulation tube inserts fiber direct connection in the existing engineering.As shown in Figure 2; Above-mentioned existing technical scheme is through inserting signal transmission fiber 91 in the High-Voltage Insulation tracheae 92, WATERPROOF PACKING GLAND 93 is set in the high-pressure side carries out waterproof sealing, whole High-Voltage Insulation tracheae 92 two ends employing waterproof gasket cement secure seal; Twine with insulating tape again; On pantograph, above-mentioned syndeton is set on the roof 95 of inspection vehicle with the iron wire colligation, thereby realizes that the transmission detection signal is to environment under low pressure from hyperbaric environment.
In above-mentioned prior art, safeguard and change very inconvenience, this prior art often needs the periodic examination High-Voltage Insulation tracheae 92 of wiping, in order to avoid serious generation flashover is stained on the surface; When changing optical fiber 91, need open data acquisition process unit box 94, extract fibre-optical splice from circuit board, and then change High-Voltage Insulation tracheae 92 along optical fiber extraction just can carrying out optical fiber.In addition, High-Voltage Insulation tracheae 92 is not owing to there is full skirt, and creepage distance can't increase, and rainwater is past dirty along High-Voltage Insulation tracheae 92 easily, forms discharge path, and this existing structure is prevented the flashover ability.
Thus, the inventor relies on experience and the practice of being engaged in relevant industries for many years, proposes the special-purpose high-low pressure Signal Spacing of a kind of Contact Line Detection car transmitting device, to overcome the defective of prior art.
Summary of the invention
The object of the present invention is to provide the special-purpose high-low pressure Signal Spacing of a kind of Contact Line Detection car transmitting device,, and can prevent that rainwater from forming path along the high-low pressure connection device and causing flashover with convenient for maintaining and replacing optical fiber.
Another object of the present invention is to provide the special-purpose high-low pressure Signal Spacing of a kind of Contact Line Detection car transmitting device, can increase creepage distance.
The objective of the invention is to realize like this; The special-purpose high-low pressure Signal Spacing of a kind of Contact Line Detection car transmitting device; This isolation transmission device comprises a vertical optical fiber insulator that is provided with; Said optical fiber insulator lower end connects a low-pressure side mounting box, and said optical fiber insulator upper end connects a high-pressure side mounting box, and said low-pressure side mounting box is fixedly installed on the roof of inspection vehicle; The sidewall of said low-pressure side mounting box and high-pressure side mounting box fixedly mounts a low-pressure side optical fiber aviation plug and high-pressure side optical fiber aviation plug respectively; Be provided with four signal transmission fibers in the said optical fiber insulator; The upper end of said signal transmission fiber is connected in high-pressure side optical fiber aviation plug, and the lower end of said signal transmission fiber is connected in low-pressure side optical fiber aviation plug.
In a preferred embodiments of the present invention, said optical fiber insulator is made up of the full skirt of tubing string and tubing string arranged outside; The upper and lower end of tubing string is respectively equipped with mounting flange and following mounting flange.
In a preferred embodiments of the present invention, said low-pressure side mounting box and high-pressure side mounting box are processed by polyetheretherketone (PEEK) resin material.
In a preferred embodiments of the present invention, said high-pressure side optical fiber aviation plug is connected in a high-pressure side armouring shielding optical cable through the optical cable plug that matches with it.
In a preferred embodiments of the present invention, said high-pressure side armouring shielding optical cable is the side armouring shielding optical cable of 1.5m.
In a preferred embodiments of the present invention, said low-pressure side optical fiber aviation plug is connected in low-pressure side armouring shielding optical cable through the optical cable plug that matches with it.
In a preferred embodiments of the present invention, the side armouring shielding optical cable that said low-pressure side armouring shielding optical cable is 30m.
From the above mentioned; The special-purpose high-low pressure Signal Spacing of Contact Line Detection car of the present invention transmitting device has adopted the optical fiber aviation plug to combine the assembled package technology of optical fiber insulator and PEEK high strength insulating mounting box, has realized the isolation transmission of high-low pressure signal; Convenient for maintaining and replacing; Can prevent that rainwater from forming path along the high-low pressure connection device and causing flashover, can increase creepage distance, solve the problem that prior art exists.
Description of drawings
Following accompanying drawing only is intended to the present invention is done schematic illustration and explanation, not delimit the scope of the invention.Wherein:
Fig. 1: be the structural representation of the special-purpose high-low pressure Signal Spacing of Contact Line Detection car of the present invention transmitting device.
Fig. 2: be the prior art constructions synoptic diagram.
Embodiment
To understand in order technical characterictic of the present invention, purpose and effect being had more clearly, to contrast description of drawings embodiment of the present invention at present.
As shown in Figure 1; The present invention proposes the special-purpose high-low pressure Signal Spacing of a kind of Contact Line Detection car transmitting device 100; This isolation transmission device 100 comprises a vertical optical fiber insulator 1 that is provided with; Said optical fiber insulator 1 lower end connects a low-pressure side mounting box 2, and said optical fiber insulator 1 upper end connects a high-pressure side mounting box 3, and said low-pressure side mounting box 2 is fixedly installed on the roof 8 of inspection vehicle; Said low-pressure side mounting box 2 is processed by polyetheretherketone (PEEK) resin material with high-pressure side mounting box 3.The sidewall of said low-pressure side mounting box 2 and high-pressure side mounting box 3 fixedly mounts a low-pressure side optical fiber aviation plug 4 and high-pressure side optical fiber aviation plug 5 respectively; Said optical fiber aviation plug 4 and 5 adopts J599/26KE8PN stainless steel optical fiber aviation plug, and pin tail is done water-tight and handled; Said high-pressure side optical fiber aviation plug 5 is connected in a high-pressure side armouring shielding optical cable 71 through the optical cable plug that matches with it; Said high-pressure side armouring shielding optical cable 71 is the side armouring shielding optical cable of 1.5m; Said low-pressure side optical fiber aviation plug 4 is connected in low-pressure side armouring shielding optical cable 72 through the optical cable plug that matches with it; The side armouring shielding optical cable that said low-pressure side armouring shielding optical cable 72 is 30m; Be provided with four signal transmission fibers 6 in the said optical fiber insulator 1, the upper end of said signal transmission fiber 6 is connected in high-pressure side optical fiber aviation plug 5, and the lower end of said signal transmission fiber 6 is connected in low-pressure side optical fiber aviation plug 4.Only use two-way during the work of four tunnel light paths, the residue two-way is as subsequent use; Optical fiber 6 types are 62.5/125 multimode step optical fiber, and optical cable is φ 2 single core PVC loosely shielded optical cables.
Further, in this embodiment, said optical fiber insulator 1 is made up of a plurality of full skirts 12 that the tubing string 11 and tubing string 11 outsides fixedly install; The upper and lower end of tubing string 11 is respectively equipped with mounting flange 13 and following mounting flange 14.
The calculating of creepage distance is relevant with the quantity of the optical fiber insulator profile diameter of (comprising full skirt), shape and full skirt; Owing to adopted optical fiber insulator in this embodiment, therefore, increased along the path (that is: creepage distance) of insulator surface discharge with a plurality of full skirts.
In this embodiment, high-pressure side employing PEEK insulating material is processed into a rectangular parallelepiped box and is used to install the joints of optical fibre (that is: optical fiber aviation plug) and the rebound that is connected pantograph is installed; Optical fiber insulator adopts the optical fiber insulator of 35KV electric pressure, and the bending resistance square is 12kN; Full skirt is reclinate compound resin, both can make creepage distance reach 1200mm, can prevent to contain on the full skirt rainwater again; Low-pressure side adopts the PEEK insulating material to be processed into a rectangular parallelepiped box, is used to install the joints of optical fibre and fixing aluminium sheet, and the creepage distance of whole device is greater than 1400mm.
From the above mentioned; The special-purpose high-low pressure Signal Spacing of Contact Line Detection car of the present invention transmitting device; Adopt the optical fiber aviation plug to combine the assembled package technology of optical fiber insulator and PEEK high strength insulating mounting box, realized the isolation transmission of high-low pressure signal, convenient for maintaining and replacing; Can prevent that rainwater from forming path along the high-low pressure connection device and causing flashover, solve the problem that prior art exists.
The present invention also can be used for monitoring, detecting in the device of railway traction power supply system, electric system mesohigh side apparatus state or electric parameter, is used for isolating and transmission high-low pressure signal.
The above is merely the schematic embodiment of the present invention, is not in order to limit scope of the present invention.Any those skilled in the art, equivalent variations of under the prerequisite that does not break away from design of the present invention and principle, having done and modification all should belong to the scope that the present invention protects.
Claims (7)
1. the special-purpose high-low pressure Signal Spacing of Contact Line Detection car transmitting device; It is characterized in that: this isolation transmission device comprises a vertical optical fiber insulator that is provided with; Said optical fiber insulator lower end connects a low-pressure side mounting box; Said optical fiber insulator upper end connects a high-pressure side mounting box, and said low-pressure side mounting box is fixedly installed on the roof of inspection vehicle; The sidewall of said low-pressure side mounting box and high-pressure side mounting box fixedly mounts a low-pressure side optical fiber aviation plug and high-pressure side optical fiber aviation plug respectively; Be provided with four signal transmission fibers in the said optical fiber insulator; The upper end of said signal transmission fiber is connected in high-pressure side optical fiber aviation plug, and the lower end of said signal transmission fiber is connected in low-pressure side optical fiber aviation plug.
2. the special-purpose high-low pressure Signal Spacing of Contact Line Detection car as claimed in claim 1 transmitting device, it is characterized in that: said optical fiber insulator is made up of the full skirt of tubing string and tubing string arranged outside; The upper and lower end of tubing string is respectively equipped with mounting flange and following mounting flange.
3. the special-purpose high-low pressure Signal Spacing of Contact Line Detection car as claimed in claim 1 transmitting device, it is characterized in that: said low-pressure side mounting box and high-pressure side mounting box are processed by the polyether-ether-ketone resin material.
4. the special-purpose high-low pressure Signal Spacing of Contact Line Detection car as claimed in claim 1 transmitting device is characterized in that: said high-pressure side optical fiber aviation plug is connected in a high-pressure side armouring through the optical cable plug that matches with it and shields optical cable.
5. the special-purpose high-low pressure Signal Spacing of Contact Line Detection car as claimed in claim 4 transmitting device is characterized in that: said high-pressure side armouring shielding optical cable is the side armouring shielding optical cable of 1.5m.
6. the special-purpose high-low pressure Signal Spacing of Contact Line Detection car as claimed in claim 1 transmitting device is characterized in that: said low-pressure side optical fiber aviation plug is connected in a low-pressure side armouring through the optical cable plug that matches with it and shields optical cable.
7. the special-purpose high-low pressure Signal Spacing of Contact Line Detection car as claimed in claim 6 transmitting device is characterized in that: the side armouring shielding optical cable that said low-pressure side armouring shielding optical cable is 30m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101528896A CN102680760A (en) | 2012-05-16 | 2012-05-16 | High- and low- voltage signal isolation transmission device special for contact network inspection trolley |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101528896A CN102680760A (en) | 2012-05-16 | 2012-05-16 | High- and low- voltage signal isolation transmission device special for contact network inspection trolley |
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| CN102680760A true CN102680760A (en) | 2012-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012101528896A Pending CN102680760A (en) | 2012-05-16 | 2012-05-16 | High- and low- voltage signal isolation transmission device special for contact network inspection trolley |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102916355A (en) * | 2012-11-06 | 2013-02-06 | 北京赛德高科铁道电气科技有限责任公司 | High-voltage electrical box |
| CN104330733A (en) * | 2014-11-21 | 2015-02-04 | 西安伯龙高铁电气有限公司 | Train roof insulation detection device |
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| US3380009A (en) * | 1967-03-10 | 1968-04-23 | Gen Electric | High voltage current transformer |
| CN2751422Y (en) * | 2005-06-11 | 2006-01-11 | 西安高压电器研究所 | Photoelectric DC current transformer |
| US20060188203A1 (en) * | 2005-02-16 | 2006-08-24 | Yazaki Corporation | Optical fiber protective tube |
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2012
- 2012-05-16 CN CN2012101528896A patent/CN102680760A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US3380009A (en) * | 1967-03-10 | 1968-04-23 | Gen Electric | High voltage current transformer |
| US20060188203A1 (en) * | 2005-02-16 | 2006-08-24 | Yazaki Corporation | Optical fiber protective tube |
| CN2751422Y (en) * | 2005-06-11 | 2006-01-11 | 西安高压电器研究所 | Photoelectric DC current transformer |
| CN201051166Y (en) * | 2007-06-15 | 2008-04-23 | 吕政鸿 | Enhanced indoor and outdoor armored soft optical cable |
| CN201060281Y (en) * | 2007-07-31 | 2008-05-14 | 湖南大学 | High voltage isolation device based on optical fiber transmission |
| CN101354271A (en) * | 2008-09-08 | 2009-01-28 | 北京交通大学 | High-voltage transmission line pole tower operation safe monitor |
| CN201682197U (en) * | 2010-03-26 | 2010-12-22 | 上海大华电器设备有限公司 | High pressure switch cabinet aviation plug and handcart interlocking device |
| CN102393477A (en) * | 2011-11-03 | 2012-03-28 | 四川电力科学研究院 | Integration wiring apparatus used for high voltage three-phase combination mutual inductor on-site detection |
| CN202649280U (en) * | 2012-05-16 | 2013-01-02 | 中国铁道科学研究院基础设施检测研究所 | Special high- and low-voltage signal isolation transmission device for contact network inspection trolley |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102916355A (en) * | 2012-11-06 | 2013-02-06 | 北京赛德高科铁道电气科技有限责任公司 | High-voltage electrical box |
| CN104330733A (en) * | 2014-11-21 | 2015-02-04 | 西安伯龙高铁电气有限公司 | Train roof insulation detection device |
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Application publication date: 20120919 |