CN2777837Y - Large current power electronic apparatus without metal cabinet type structure - Google Patents
Large current power electronic apparatus without metal cabinet type structure Download PDFInfo
- Publication number
- CN2777837Y CN2777837Y CNU2005200694589U CN200520069458U CN2777837Y CN 2777837 Y CN2777837 Y CN 2777837Y CN U2005200694589 U CNU2005200694589 U CN U2005200694589U CN 200520069458 U CN200520069458 U CN 200520069458U CN 2777837 Y CN2777837 Y CN 2777837Y
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- insulation
- thick stick
- power electronic
- metal cabinet
- parallel connection
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Abstract
The utility model relates to a large power electric power system apparatus, particularly to an electric power electronic power conversion apparatus which is suitable for large current AC-DC, AC-AC, DC-AC, DC-DC. A main circuit system of the utility model comprises a plurality of current branch circuits with different electric potentials and very large current. Every bridge arm forms one independent module, and the modules are connected into a whole along the longitudinal direction of the horizontal plane via parallel insulated rods. Every module is connected with a direct current anode bus and a direct current cathode bus in the corresponding horizontal direction via a metallic conductor and transversely connected into an entire structure on the horizontal plane via a bottom supporting insulated rod and a top insulated cover plate, the bottom supporting insulated rod of the entire structure is used as a base of the entire structure, and an insulating material base supports the entire structure so as to form a cabinet type structure without metal. The utility model greatly reduces the wastage, the vibration, the temperature rise and the noise of the apparatus, and greatly enhances the output power and the running efficiency and security of the apparatus.
Description
Technical field
The utility model relates to the high-power electric system equipment, refers in particular to no metal cabinet style structure high current power electronic installation.Be particularly useful for big electric current AC-DC, AC-AC, DC-AC, DC-DC electric and electronic power converting means, its main circuit system comprises different potentials and many very big current branch of electric current.
Background technology
In general high-power electric system equipment, its main circuit system often is installed in the metal cabinet, and is supported by metal framework.Because the existence of metal cabinet, when the electric current of system equipment is big, its electromagnetic induction causes metal cabinet internal vortex bigger, brought the supplementary load loss increase thus, the temperature rise of metal cabinet associated metal parts is risen, and shortcomings such as system equipment vibration aggravation and noise increase are especially under the very big condition of work of electric current, situation is more outstanding, even whole system equipment can't operate as normal.Adopt the metal cabinet and the current capacity of power system device will be restricted, will improve the power output of system equipment greatly, improve operational environment with no metal cabinet and metal framework brace type structure by the metal framework support.
Chinese patent notification number: 2525726, " rectifying device of being made up of the horizontal rectifier arm of self-supporting " proposes to be supported in rectifier arm on the working reference plane with individual layer or the equidistant accumbency of dual layer arrangement form, component level arrangement in parallel in the rectifier arm and the method that connects with rectifier transformer by electrical connecting wire, the structure that promptly adopts each support arm equidistantly horizontally to be provided with, can break away from the restriction of cabinet, make each spacing arm from significantly increasing, effectively reduced alternate magnetic interference, avoided the expansion of local fault, its structure is applicable to that non-cophase counter parallel connection or cophase counter parallel connection electrically connect form, the rectifying device that thyristor or rectifier diode device are formed.But it has increased the overall dimension and the floor space of whole high-power electric system and device, and the valve side connection bus loss of system is increased, and the device globality is not good enough.
Summary of the invention
The utility model proposes a kind of no metal cabinet style structure high current power electronic installation, only adopt insulating material to support the structure of main circuit system.
The utility model with the scheme that solves its technical problem is:
Device is formed an independently module and vertically connect into an integral body at horizontal plane by parallel connection insulation thick stick by each brachium pontis;
For the device that adopts the cophase counter parallel connection technology, every pair of cophase counter parallel connection arm is formed an independently module, and this vertically connects into an integral body by bottom insulation in parallel thick stick and top insulation in parallel thick stick at horizontal plane to being provided with insulating barrier in the middle of the brachium pontis again.
Each module is connected with the direct current positive and negative utmost point bus of respective horizontal direction through metallic conductor, and laterally connect into an overall structure at horizontal plane by bottom support insulation thick stick and top insulation cover plate, with bottom support insulation thick stick is this whole pedestal, and be provided with the base supports of insulating material, thereby form no metal cabinet style structure.
By the parallel connection insulation thick stick that vertical connection is set every 2-3 power electronic element, insulating barrier is a whole structure to each brachium pontis between every pair of cophase counter parallel connection arm at horizontal plane.
Element crimping screw rod is connected in the antimagnetic backing plate at the element busbar back side, and its reach is less than the thickness of antimagnetic backing plate, in case run into insulating barrier, antimagnetic plate thickness is less than the thickness of parallel connection insulation thick stick.
Element crimping screw jacket adopts two insulation technologies, promptly is being close to the soft insulating material of hardware crimping screw rod appearance place cover one deck, and its skin is the higher hard insulation of dielectric strength, and the two layers of insulation material spacing should not surpass 1.5mm.
The beneficial effects of the utility model are, use no metal cabinet style structure will greatly reduce loss, vibration, temperature rise, the noise of device, efficient, fail safe when greatly improving the exportable power of device and operation.
Description of drawings
Fig. 1 is a no metal cabinet style structural representation described in the utility model
Fig. 2 is a cophase counter parallel connection brachium pontis front view described in the utility model
Fig. 3 is a cophase counter parallel connection brachium pontis end view described in the utility model
Fig. 4 is a single element crimping front view described in the utility model
Wherein: 1. bottom support insulation thick stick.2. fixing angle steel.3. fast acting fuse.4. molten soon water-cooled busbar.5. top insulation cover plate.6. anode bus rod A.7. anode bus rod B.8. insulating barrier.9. negative electrode bus rod A.10. negative electrode bus rod B.11. top insulation in parallel thick stick.12. middle and upper part insulation in parallel thick stick.13. middle and lower part insulation in parallel thick stick.14. bottom insulation in parallel thick stick.15. fixed connecting piece.16. supports insulative porcelain vase.17. collection pipe.18. the valve top-cross flows to line.19. element water-cooled busbar.20. metal bonding conductor.21. antimagnetic backing plate.22. element crimping screw rod.23. power electronic element.24. insulation pressing.25. water-filled radiator.26. steel spring plate.27. cotton varnished sleeve.28. expoxy glass stringing.
Embodiment
The following examples will be further specified the utility model, but therefore not limit the utility model.
In high current power electronic power transformation system, the different potentials or the current branch of main circuit system are divided into several independently modules, each module is coupled to independent overall structure by insulating material, by the requirement of power system device circuit, these modules are connected into an overall structure by metallic conductor and insulating material.
As shown in Figure 1,6 pairs of cophase counter parallel connection arms are arranged in the device, can regard every pair of cophase counter parallel connection arm as an independently module.Thick stick (1) is connected this 6 couple and top insulation cover plate (5) thick stick of insulation in parallel with top (11) connects into an overall structure by fixedly angle steel (2) insulate with bottom support with contrary connection arm, by metallic conductor and corresponding direct current positive and negative busbar (6,7,9,10) connect, can further reinforce all same contrary and arm.And all leave the outlet that confluxes in the left, center, right of the positive and negative bus of direct current (6,7,9,10), the crimping current density requirement of the outlet junction that not only guaranteed to conflux, and balance the center of gravity of whole system equipment.By fixed connecting piece (15) the bottom support thick stick (1) that insulate is fixed on the supports insulative porcelain vase (16), thereby forms no metal cabinet style structure.
As shown in Figure 2,6 power electronic elements (23) are arranged on each brachium pontis, form parallel circuits by element water-cooled busbar (19) and fast molten water-cooled busbar (4) between them, every power electronic element (23) on the parallel branch links to each other with a fast acting fuse (3) by metallic conductor (20), by parallel connection insulation thick stick (11,12,13,14) element water-cooled busbar (19) and fast molten water-cooled busbar (4) are connected into an integral body.Vibration when reducing the work of insulating barrier (8) thermoelectricity stream is provided with one whole insulation thick stick in parallel every two power electronic elements (23), tightly suppresses insulating barrier (8) by the parallel connection insulation thick stick (11,12,13,14) of same thickness.Insulating barrier (8) is a whole structure between every pair of cophase counter parallel connection arm, if individual insulation board size be need splice inadequately the time, and should be at the parallel connection thick stick (11 that insulate, 12,13) locate splicing, and by parallel connection insulation thick stick (11,12,13) complete covering joints increases the creepage distance between the cophase counter parallel connection arm.
As shown in Figure 3, power electronic element (23), water-filled radiator (25) and insulation pressing (24) are fixed on the element water-cooled busbar (19) through element crimping screw rod (22) by steel spring plate (26), for guaranteeing the spacing of minimum cophase counter parallel connection brachium pontis, element crimping screw rod (22) is connected in the antimagnetic backing plate (21) at element water-cooled busbar (19) back side, its reach is less than the thickness of antimagnetic backing plate (21), produce vibration in case run into insulating barrier (8), antimagnetic backing plate can reduce element water-cooled busbar (19) distortion and additional heating loss, its thickness is less than the parallel connection thick stick (11 that insulate, 12,13,14) thickness.
As shown in Figure 4, adopt two insulation technologies at hardware crimping screw rod (22) overcoat, promptly be close to the soft insulating material cotton varnished sleeve (27) of hardware crimping screw rod (22) appearance place cover one deck, its skin is the higher hard insulation expoxy glass stringing (28) of dielectric strength, the two layers of insulation material spacing is 1mm, and expoxy glass stringing (28) slides and the generation noise when reducing to move.The insulation property of system equipment have been strengthened therefrom.
The utility model can be used for the big electric current AC-DC of needs, DC-AC, all kinds of power electronic equipments of AC-AC Power Conversion and high-power electric system and device.
Claims (5)
1. no metal cabinet style structure high current power electronic installation, it is characterized in that device forms an independently module and vertically connect into an integral body at horizontal plane by parallel connection insulation thick stick by each brachium pontis, each module is through the direct current sun of metallic conductor and respective horizontal direction, negative busbar (6,7,9,10) connect, and laterally connect into an overall structure at horizontal plane by bottom support insulation thick stick (1) and top insulation cover plate (5), with bottom support insulation thick stick (1) is this whole pedestal, and be provided with the base supports of insulating material, thereby form no metal cabinet style structure.
2. a kind of no metal cabinet style structure high current power electronic installation according to claim 1, it is characterized in that for the device that adopts the cophase counter parallel connection technology, every pair of cophase counter parallel connection arm is formed an independently module, and this vertically connects into an integral body by bottom insulation in parallel thick stick (14) and top insulation in parallel thick stick (11) at horizontal plane to being provided with insulating barrier (8) in the middle of the brachium pontis again.
3. a kind of no metal cabinet style structure high current power electronic installation according to claim 1, it is characterized in that each brachium pontis at horizontal plane by the parallel connection insulation thick stick that vertical connection is set every 2-3 power electronic element, insulating barrier is a whole structure between every pair of cophase counter parallel connection arm.
4. a kind of no metal cabinet style structure high current power electronic installation according to claim 1, it is characterized in that element crimping screw rod is connected in the antimagnetic backing plate (21) at the element busbar back side, its reach is less than the thickness of antimagnetic backing plate, and antimagnetic plate thickness is less than the thickness of parallel connection insulation thick stick.
5. a kind of no metal cabinet style structure high current power electronic installation according to claim 1, it is characterized in that element crimping screw rod (22) overcoat is two insulation, promptly be close to hardware crimping screw rod (22) the appearance place soft insulating material of cover one deck earlier, overlap the higher hard insulation of dielectric strength again, the two layers of insulation material spacing is no more than 1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200694589U CN2777837Y (en) | 2005-03-04 | 2005-03-04 | Large current power electronic apparatus without metal cabinet type structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200694589U CN2777837Y (en) | 2005-03-04 | 2005-03-04 | Large current power electronic apparatus without metal cabinet type structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2777837Y true CN2777837Y (en) | 2006-05-03 |
Family
ID=36745211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200694589U Expired - Fee Related CN2777837Y (en) | 2005-03-04 | 2005-03-04 | Large current power electronic apparatus without metal cabinet type structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2777837Y (en) |
-
2005
- 2005-03-04 CN CNU2005200694589U patent/CN2777837Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |