CN201032676Y

CN201032676Y - Aviation ground DC static power supply DC bus

Info

Publication number: CN201032676Y
Application number: CNU2006201702040U
Authority: CN
Inventors: 雷晓明; 陈江岸
Original assignee: Weihai Guangtai Airport Equipment Co Ltd
Current assignee: Weihai Guangtai Airport Equipment Co Ltd
Priority date: 2006-12-25
Filing date: 2006-12-25
Publication date: 2008-03-05
Anticipated expiration: 2016-12-25

Abstract

The utility model relates to a direct current bus line of the aviation ground direct current static power source. The utility model belongs to the aviation ground direct current static power source. In order to overcome the problems that mutual disturbance is generated through cross routing and parallel routing of the direct-current cable, the cable is too long through separate routing, the pressure drop is too big through big current, the power source output quality is reduced through over loading and the maintainability is bad, the connecting lines between each module of the power source adopts the structure of copper bar and insulating plate pressed bus line. The copper bar and the insulating plate are pressed together in layers and form a five-layer structure. The top layer is the positive pole of the direct current power source. The second layer is the insulating plate. The third layer is the half-way point 0 of the upper and lower electric capacity of the direct current filtering module. The fourth layer is the insulating plate. The fifth layer is the negative pole of the direct current power source. The connection of each module and the direct current bus line are realized through the brass bolts connecting the copper bar of each module together. The utility model is suitable for the aviation ground direct current static power source.

Description

Aviation ground direct current static power source dc bus

Technical field

The utility model relates to a kind of aviation ground static power source, especially a kind of aviation ground direct current static power source dc bus.

Background technology

For aviation ground direct current static power source, major loop generally all adopts the form of " handing over-straight-hand over ", both electric main (50Hz 230/400V) was become direct current (about 540VDC) by three phase rectifier, again direct current is supplied with aircraft utilization by the three phase mains that the inversion circuit becomes 400Hz 115/200V, electric components and line each other between this three parts power conversion are more, and because power is big, so cable is all thicker, 75 squares of many employings, the cable that 90 quadratic sums are 120 squares, power frequency 50Hz stube cable is arranged, the direct current stube cable is arranged, intermediate frequency 400Hz stube cable is arranged, staggered cabling inevitably appears, even and walking line, thereby cabling is mixed and disorderly, maximum problem is to produce the phase mutual interference by cable between these three kinds of power supplys, in order to reduce this interference, usually the method that adopts is that cable with these 3 kinds of power supplys separates cabling, avoid and walking line and staggered cabling as far as possible, if walk not open really, that just strengthens the distance between cable as far as possible, however, this problem is never solved at all, a new problem bringing of cabling is exactly that cable is long like this, under the big current conditions pressure drop too big, cause when the band heavy load output voltage landing too big, cause the power supply output quality to descend, this mode of connection also greatly reduces maintenanceability, in order to change a module, when dismounting, a lot of cables of dismantling have increased maintenance time.

Because the phase mutual interference that staggered cabling of the cable of existing bus and walking line cable produce, separately long, the big current voltage drop of cabling cable is too big, the deficiency of decline of power supply output quality and maintenanceability difference when causing heavy load, there is significant limitation in the use, can not satisfies aviation ground direct current static power source output quality height, requirement easy to maintenance.

Summary of the invention

The purpose of this utility model is to overcome the phase mutual interference of staggered cabling and the generation of walking line cable, separately long, the big current voltage drop of cabling cable is too big, the deficiency of decline of power supply output quality and maintenanceability difference when causing heavy load, the dc bus structure that aviation ground is exchanged static power source is improved, each power model of power supply is rationally connected easily, realized the modularization of complete machine, the stability of raising system and maintenanceability satisfy aviation ground direct current static power source output quality height, requirement easy to maintenance.

The utility model solves the problems of the technologies described above the scheme that is adopted: a kind of aviation ground direct current static power source dc bus, it is characterized in that: the connection line between each module of power supply adopts copper bar and insulation board to laminate into a single integrated structure, topmost one deck is the positive terminal of DC power supply, the second layer is an insulation board, the 3rd layer is the DC filtering module intermediate point of electric capacity up and down, the 4th layer is insulation board, layer 5 is the negative pole end of DC power supply, and the positive terminal of DC power supply, the negative pole end of DC power supply are used for connecting rectification module respectively.

The utility model can also be realized its purpose by following measures: being connected between copper bar and each module adopted brass bolt, copper nut, brass bolt and copper bar electroplate.

The beneficial effects of the utility model are: because bus adopts the direct current copper bar to laminate, make the conduction distance between each module the shortest, it is firm to connect, and alternating current circuit and DC line are separated fully, and be noiseless each other, heavy load output quality height; Each module is arranged in a side of power supply by dc bus, makes easy to maintenance.

The utility model is applicable to aviation ground direct current static power source.

Description of drawings

The utility model is described in further detail below in conjunction with drawings and Examples:

Fig. 1 is the structural representation of aviation ground static power source dc bus

Fig. 2 is the vertical view of Fig. 1.

Fig. 3 is the end view of Fig. 1.

Fig. 4 is the stereogram of Fig. 1.

Among the figure, 1. capacitor, 2. copper bar, 3. side plate handrail, 4. radiator, 5. rectification module, 6. direct current module, 7. direct current module, 8. direct current module, 9. nut, 10. copper bar, 11. copper bars, 12. insulation boards, 13. insulation boards, 14. copper bars, 15. electric capacity support plates.

Execution mode

In Fig. 1, Fig. 2, Fig. 3, Fig. 4, stable output when guaranteeing power supply to aviation power supply, direct current output no longer adopts traditional cable to connect, and all adopts copper bar 2, copper bar 10, copper bar 11, copper bar 14 to connect, connect simple and reliable, conductive section is big, and contact impedance is little, and thermal losses is low, internal pressure drops is little, make power supply under big electric current output situation, voltage reduces, the output voltage quality better; At first be that industrial frequency rectifying circuit, DC filtering circuit, ac converter line design are become rectification module 5, controllable silicon half control module, triggering driver circuit plate, temperature element, the surge that will be used for fourth rectification frequently absorbs circuit, anti-interference capacitor is designed to direct current module 6, direct current module 7, direct current module 8 and is installed in an aluminium radiator 4, the positive terminal (+) of rectification module 5 and negative pole end (-) connect the input of blind influx module 6, direct current module 7, direct current module 8, each module is fixed on the side plate, and side plate is provided with side plate handrail 3 and is convenient to fitting operation; To be used on an electric capacity support plate 15, constituting the DC filtering module to a plurality of big capacity filtering capacitor 1 integral installation of direct current module filtered; Igbt, triggering driver circuit plate, temperature element, the surge that will be used for inversion absorbs circuit, anti-interference capacitor is designed to exchange module and is installed in an aluminium radiator 4, and totally three, corresponding to the three phase terminals of output three phase mains.Modularized design by above circuit, make the major loop structure of power supply become clear, this three part of module all needs the DC line that rectification is come out with the direct current module to link to each other, adopt copper bar 2, copper bar 10, copper bar 11, copper bar 14 and insulation board 12, insulation board 13 forms 5 layers of structure, topmost one deck copper bar 11 be DC power supply+, the second layer is an insulation board 12, the 3rd layer of copper bar 10 is the DC filtering module intermediate point 0 of electric capacity up and down, the 4th layer is insulation board 13, layer 5 copper bar 14 is one of a DC power supply, the copper bar of each module and dc bus correspondence links together with brass bolt and nut 9, this structure makes the conduction distance between each module the shortest, it is firm to connect, alternating current circuit and DC line are separated fully, noiseless each other, each module is arranged in a side of power supply by dc bus, makes easy to maintenance.

Because bus adopts direct current copper bar and insulation board to laminate, make the conduction distance between each module the shortest, it is firm to connect, and alternating current circuit and DC line are separated fully, and be noiseless each other, heavy load output quality height; Each module is arranged in a side of power supply by dc bus, makes easy to maintenance.

Claims

1. aviation ground direct current static power source dc bus, it is characterized in that: the connection line between each module of power supply adopts copper bar and insulation board to laminate into a single integrated structure, topmost one deck is the positive terminal of DC power supply, the second layer is an insulation board, the 3rd layer is the DC filtering module intermediate point of electric capacity up and down, the 4th layer is insulation board, and layer 5 is the negative pole end of DC power supply, and the positive terminal of DC power supply, the negative pole end of DC power supply are used for connecting rectification module respectively.

2. aviation according to claim 1 ground direct current static power source dc bus is characterized in that being connected between said copper bar and each module adopting brass bolt, copper nut, brass bolt and copper bar electroplate.