CN103997233A - High-power high-speed rotating rectifier assembly - Google Patents
High-power high-speed rotating rectifier assembly Download PDFInfo
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- CN103997233A CN103997233A CN201410259979.4A CN201410259979A CN103997233A CN 103997233 A CN103997233 A CN 103997233A CN 201410259979 A CN201410259979 A CN 201410259979A CN 103997233 A CN103997233 A CN 103997233A
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- copper bar
- speed rotating
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Abstract
The invention provides a high-power high-speed rotating rectifier assembly. The high-power high-speed rotating rectifier assembly comprises a flat plate type rectifier and further comprises a structural frame, a cross-over block, a lower copper bar, an upper copper bar, a leveling cushion block, a disk spring, an inverted T-shaped guide post, a ball head bolt, an anode aluminum block and a cathode screw. The structural frame is formed by connecting a plurality of conductive screws with conductive screw holes in an upper pressing plate and a lower pressing plate, and the appearance of the structural frame is similar to a cylinder. The lower copper bar and the cross-over block are respectively and wholly of a T shape, and the lower portion of the cross-over block is fixed to a trapezoid through hole in the center of the lower pressing plate in an interference fit mode. A traditional bolt type rectifier is abandoned, a flat plate type rectifier tube is boldly adopted as a core device, a press-fitting structure is ingeniously designed according to the structural features of the device, it is guaranteed that the flat plate type device can still normally work on high-speed rotating occasions, and therefore the problem of application of the flat plate type rectifier to the high-speed rotating occasions is solved.
Description
Technical field
The present invention relates to generator excited system field, particularly a kind of Large-power High-Speed rotating rectifier assembly.
Background technology
In generator excited system, the ac excited generator output AC electricity of High Rotation Speed, alternating current must be by exporting to main generator excitation after rectification, in this system, a core component is exactly rectifier, because of the running of itself and generator coaxle, therefore require it can bear very high centrifugal force.
Rotating rectifier is exactly a kind of rectifier that is applied to rotation occasion, more common application form is rotation three-phase bridge rectifier, be exactly three-phase bridge rectifier and generator coaxle running, alternating current is after rectifier rectification, and output DC is to main generator excitation.Because being different from common rectifier, it is applied to the application scenario of High Rotation Speed, therefore be called as rotating rectifier.Rotating rectifier mostly is screw bolt-type rectifier.
The structure of screw bolt-type rectifier is very simple, and negative electrode is drawn by screw rod, and anode is drawn by the hole lengthening, very fast and simple when installation.Exactly because but also this simple device architecture form has determined that the current/voltage ability of screw bolt-type rectifier can not be very high.The specified average current of device will reach thousands of peaces, needs more large-area chip through-flow, and it is larger that traditional screw bolt-type rectifier tube chip cannot do, thereby cannot carry thousands of peace electric currents.
Plate device is to rely on ambient pressure to realize the (see figure 1) that engages of chip and shell, and chip is cinch larger, and therefore aspect parameter, plate device can meet the demands, but its original version cannot be in High Rotation Speed applications.As shown in Figure 1, plate rectifying tube is made up of 5 parts, and middle 3 is chip, exert pressure by outside, the electrical contact of realization and parts 1 and parts 2, parts 1 are anode table top, parts 2 are cathode table surface, and 4 for to prevent that chip is subject to the molybdenum sheet of thermal deformation, and 5 is retainer plate.This device anode and cathode material is copper, and quality is heavier, in the time of rotation applications, need to ensure that rotating shaft passes the central shaft of device, otherwise can produce very high centrifugal force, thereby cause device failure, cannot practical function.
Therefore, current rotating rectifier is on the market the first screw bolt-type rectifying tube, and the average current of specified forward is between 16A to 500A, and voltage is lower than 2800V, therefore the power of traditional rotating rectifier is lower, can only meet low power application scenario.Although available low power screw bolt-type rectifying tube series connection or in parallel, easily causes complex structure and all presses the problems such as current-sharing, is unfavorable for that practicality is not strong in high rotating speed applications.
In some specific high-power applications occasions, require the voltage of rotating rectifier high, electric current is large, and this rectifier needs to bear the pulse current of tens kilo-amperes kilo-amperes even up to a hundred.Therefore, develop powerful rotating rectifier just very necessary.The classical insulation of plate rectifying tube can meet powerful application demand, but structure aspects cannot meet application demand, is never successfully applied to High Rotation Speed occasion, need do particular design according to its design feature.
Summary of the invention
Based on the deficiencies in the prior art, the problem to be solved in the present invention is to provide a kind of Large-power High-Speed rotating rectifier assembly.
For solving the problems of the technologies described above, the invention provides a kind of Large-power High-Speed rotating rectifier assembly, comprise plate rectifier, it also comprises structure-steel framing, cross-over block, lower copper bar, upper copper bar, leveling cushion block, disk spring, inverted T-shaped guide pillar, ball stud, anode aluminium block and negative electrode screw rod; Structure-steel framing is connected to form by the conductive lever hole on several conductive levers and top board and lower platen, and profile is similar cylindrical; Lower copper bar and the equal entirety of cross-over block are T font, and the bottom of cross-over block adopts interference fit to be fixed in the trapezoidal hole at lower platen center; The bottom of lower copper bar is fixedly connected with anode aluminium block through after the central through hole of cross-over block; Lower copper bar upper end is provided with the low groove that blocks its anode table top of plate rectifier; Upper copper bar lower end is provided with the upper groove that blocks plate its cathode table surface of rectifier; Two of negative electrode screw rod is connected with the negative electrode screw hole on upper copper bar with top board respectively; Leveling cushion block entirety is similar trapezoidal, and the dark groove of copper bar upper end is put in lower end; The positioning through hole at top board center is inserted in the upper end of inverted T-shaped guide pillar, and the lower end of disk spring is supported on the base of inverted T-shaped guide pillar, and upper end contacts with top board; Ball stud is screwed in the tapped through hole at inverted T-shaped guide pillar center, and ball head divides and is pressed on sphere chamber corresponding to leveling cushion block upper end.
As the improvement on the one hand of a kind of Large-power High-Speed rotating rectifier assembly of the present invention: described top board and lower platen are plectane, and panel edges is provided with U-shaped groove.U-shaped groove can be used for positioning action, while rotation, as twisting force point, drives assembly to accelerate and the rotation of slowing down with motor simultaneously.
Structure-steel framing and anode aluminium block adopt aluminum alloy materials, and quality is light, and intensity is high, the centrifugal force while reducing High Rotation Speed.Intensity is high, good conductivity (pressure drop is little); Cross-over block adopts the material of epoxy resin bonded fiber, and machinability is good, withstand voltage height; Lower copper bar does anode and draws use, adopts red copper material, and electrical and thermal conductivity is good;
Above-mentioned top board is provided with the negative electrode fairlead that serves as whole assembly negative electrode interface; Above-mentioned anode aluminium block is provided with the anode fairlead that serves as whole assembly anode interface, facilitates outward element.
On above-mentioned cross-over block, be designed with cannelure, insulation cushion inside is device anode, and outside is device cathodes, by insulation cushion, anode and cathode is separated, and increases groove structure, increases creepage distance, prevents voltage breakdown, Assurance component reliability.
It is dark that above-mentioned upper groove and low groove are 0.5mm.Effectively utilize the architectural feature of plate part table higher than shirt rim 1mm, part table is positioned to the inside grooves of copper bar, in the time that the frictional force that press-fits generation is less than the centrifugal force in when rotation, groove structure can stop device to fly away from, the fail safe while further having improved assembly operating.
As the improvement on the one hand of a kind of Large-power High-Speed rotating rectifier assembly of the present invention: also comprise the alignment pin for the plate rectifier of location and installation, on described lower copper bar and upper copper bar, be equipped with corresponding dowel hole, adopt locating pin structure location and installation rectifier fast.
Spacing between above-mentioned conductive lever is less than the diameter of plate rectifier, can effectively prevent that device from flying away from away, improves component safety.
As the improvement on the one hand of a kind of Large-power High-Speed rotating rectifier assembly of the present invention: the quantity of described negative electrode screw rod or diameter are determined according to required size of current, prevented over-current phenomenon avoidance.
Leveling cushion block is designed to trapezium structure, can ensure structural strength on the one hand, ensures the even transmission of pressure, is conducive on the other hand weight reduction.There is a spherical structure leveling cushion block upper end, and power is dispersed downwards by spherical structure, exerts all one's strength and is delivered to uniformly on rectifying tube.
In the time turning ball stud, guide pillar moves up, and exerts all one's strength and acts on disk spring, forces disk spring distortion, thereby has realized applying of pretightning force, has prevented the loosening of assembly, has ensured the reliability of rectifying tube work.
Bulb center press-fit approach in press mounting structure has the following advantages: (1) this structure, about axle Central Symmetry, reduces rotary centrifugal force; (2) single ball stud is exerted pressure, and press-fits with easy to maintenance; (3) ball head structure contributes to evenly applying of pressure, the reliability while ensureing plate device work.
This patent has been invented a kind of new rotating rectifier assembly, the screw bolt-type rectifier of this assembly abandoning tradition, courageously adopting plate rectifying tube is core devices, according to the design feature of device, ingehious design press mounting structure, ensure that plate device also can normally work in High Rotation Speed occasion, thereby overcome the application difficult problem of plate rectifier in High Rotation Speed occasion.The main contents of new High Rotation Speed rectifier are: adopt plate device as core devices, press mounting structure is about axle Central Symmetry, and electrode is drawn from the two ends up and down of rotating shaft, has reduced as much as possible transverse design; Can ensure that the pressure that device bears is even, assembly through-current capability is strong, shock-resistant, anti-vibration, and global design is simple and reliable, does not need periphery all to press current-sharing protective circuit.
For plate device, be not successfully applied to the example of High Rotation Speed occasion before, it itself is about the centrosymmetric feature of axle that the present invention catches plate device, consider the each side such as requirement and the electric lead-out mode factor of plate device to pressure, design a kind of novel clamp frock, plate device is successfully applied to High Rotation Speed occasion.Therefore, can assert it is a kind of very practical rotating rectifier invention design.
Describe the present invention in detail below in conjunction with accompanying drawing, it illustrates principle of the present invention as the part of this specification by embodiment, and other aspects of the present invention, feature and advantage thereof will become very clear by this detailed description.
Brief description of the drawings
The accompanying drawing that forms a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.
Fig. 1 is the structural representation of plate rectifier;
Fig. 2 is the structural representation of a kind of Large-power High-Speed rotating rectifier assembly of the present invention;
Fig. 3 is the cross-section front view of structure-steel framing in the present invention;
Fig. 4 is the vertical view of structure-steel framing in the present invention;
Fig. 5 is the structural representation of cross-over block in the present invention;
Fig. 6 is the structural representation of lower copper bar in the present invention;
Fig. 7 is the upward view of Anodic aluminium block of the present invention;
Fig. 8 is the structural representation of upper copper bar in the present invention;
Fig. 9 is the structural representation of leveling cushion block in the present invention;
Figure 10 is the structural representation of inverted T-shaped guide pillar and disk spring in the present invention.
In Fig. 1-10, the corresponding relation of Reference numeral is:
101-anode table top; 102-cathode table surface; 103-chip; 104-molybdenum sheet; 105-retainer plate;
1-structure-steel framing; 2-cross-over block; Copper bar under 3-; 4-anode aluminium block; The upper copper bar of 5-; 6-leveling cushion block; 7-inverted T-shaped guide pillar; 8-ball stud; 9-negative electrode screw rod; The plate rectifier of 10-; 11-top board; 12-lower platen; 13-conductive lever; 14-negative electrode fairlead; 15-negative electrode screw hole; 16-conductive lever hole; 17-cannelure; 18-low groove; 19-dowel hole; 20-upper groove; 21-anode fairlead; 22-disk spring.
Embodiment
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the present invention can combine mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.For sake of convenience, hereinafter as occur " on ", D score " left side " " right side " printed words, only represent consistent with the upper and lower, left and right direction of accompanying drawing itself, structure is not played to restriction effect.
As Figure 1-10 shows, a kind of Large-power High-Speed rotating rectifier assembly, it also comprises structure-steel framing 1, cross-over block 2 to comprise plate rectifier 10, lower copper bar 3, upper copper bar 5, leveling cushion block 6, disk spring 22, inverted T-shaped guide pillar 7, ball stud 8, anode aluminium block 4 and negative electrode screw rod 9; Structure-steel framing 1 is connected to form by the conductive lever hole 16 on several conductive levers 13 and top board 11 and lower platen 12, and profile is similar cylindrical; Lower copper bar 3 and the equal entirety of cross-over block 2 are T font, and the bottom of cross-over block 2 adopts interference fit to be fixed in the trapezoidal hole at lower platen 12 centers; The bottom of lower copper bar 3 is fixedly connected with anode aluminium block 4 through after the central through hole of cross-over block 2; Lower copper bar 3 upper ends are provided with the low groove 18 that blocks plate rectifier 10 its anode table tops 101; Upper copper bar 5 lower ends are provided with the upper groove 20 that blocks its cathode table surface 102 of plate rectifier (10); Two of negative electrode screw rod 9 is connected with the negative electrode screw hole 15 on upper copper bar 5 with top board 11 respectively; Leveling cushion block 6 entirety are similar trapezoidal, and the dark groove of copper bar 5 upper ends is put in lower end; The positioning through hole at top board 11 centers is inserted in the upper end of inverted T-shaped guide pillar 7, and the lower end of disk spring 22 is supported on the base of inverted T-shaped guide pillar 7, and upper end contacts with top board 11; Ball stud 8 is screwed in the tapped through hole at inverted T-shaped guide pillar 7 centers, and bolt sphere head part is pressed on sphere chamber corresponding to leveling cushion block 6 upper ends.
Above-mentioned top board 11 and lower platen 12 are plectane, and panel edges is provided with U-shaped groove.
Said structure frame 1, anode aluminium block 4 adopt aluminum alloy materials; Described cross-over block 2 adopts epoxy glass fabric plate material; Described lower copper bar 3 adopts red copper material.
Above-mentioned top board 11 is provided with the negative electrode fairlead 14 that serves as whole assembly negative electrode interface;
Above-mentioned anode aluminium block 4 is provided with the anode fairlead 21 that serves as whole assembly anode interface.
Above-mentioned cross-over block 2 is designed with cannelure 17.
It is dark that above-mentioned upper groove 20 and low groove 18 are 0.5mm.
Above-mentioned Large-power High-Speed rotating rectifier assembly also comprises the alignment pin for the plate rectifier 10 of location and installation, on described lower copper bar 3 and upper copper bar 5, is equipped with corresponding dowel hole 19.
Spacing between above-mentioned conductive lever 13 is less than the diameter of plate rectifier 10.
The quantity of above-mentioned negative electrode screw rod 9 or diameter are determined according to required size of current.
Upper copper bar 5 is connected on structure-steel framing 1, does negative electrode and draws use; Leveling cushion block 6 bears the pressure of ball stud 8, and the spherical structure of ball stud 8 to have ensured to be applied to pressure on device even.
Advantage of the present invention is as follows:
1. break the version of traditional rotating rectifier, realized the application of plate device in rotation occasion, current capacity 1KA ~ 12KA, voltage capability 1KV ~ 8.5KV, makes rotating rectifier realize high-power applications.
2. assembly pressing clamp adopts aluminium alloy as material of main part, and assembly intensity is higher, and lighter weight meets the basic application requirements of High Rotation Speed occasion.
3. assembly overall structure adopts the design of axle Central Symmetry, and entirety location also adopts centralized positioning mode, and assembling is simple, and makes the center of gravity of each part be difficult for disalignment, the centrifugal force while reducing to rotate.
4. press-fit approach adopts single bolt, press-fits reliably, safeguards simple.
5. bolt is ball stud, has ensured the uniformity of pressure assembling force, makes plate device reliable operation.
6. assembly anodic-cathodic, all on the central shaft of assembly, is avoided, from assembly side extraction electrode, making assembly global design simple and reliable.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a Large-power High-Speed rotating rectifier assembly, comprises plate rectifier (10); It is characterized in that: also comprise structure-steel framing (1), cross-over block (2), lower copper bar (3), upper copper bar (5), leveling cushion block (6), disk spring (22), inverted T-shaped guide pillar (7), ball stud (8), anode aluminium block (4) and negative electrode screw rod (9); Structure-steel framing (1) is connected to form by the conductive lever hole (16) on several conductive levers (13) and top board (11) and lower platen (12), and profile is similar cylindrical; Lower copper bar (3) and cross-over block (2) all entirety are T font, and the bottom of cross-over block (2) adopts interference fit to be fixed in the trapezoidal hole at lower platen (12) center; The bottom of lower copper bar (3) is fixedly connected with anode aluminium block (4) through after the central through hole of cross-over block (2); Lower copper bar (3) upper end is provided with the low groove (18) that blocks its anode table top (101) of plate rectifier (10); Upper copper bar (5) lower end is provided with the upper groove (20) that blocks its cathode table surface of plate rectifier (10) (102); Two of negative electrode screw rod (9) is connected with the negative electrode screw hole (15) on upper copper bar (5) with top board (11) respectively; Leveling cushion block (6) entirety is similar trapezoidal, and the dark groove of copper bar (5) upper end is put in lower end; The positioning through hole at top board (11) center is inserted in the upper end of inverted T-shaped guide pillar (7), and the lower end of disk spring (22) is supported on the base of inverted T-shaped guide pillar (7), and upper end contacts with top board (11); Ball stud (8) is screwed in the tapped through hole at inverted T-shaped guide pillar (7) center, and bolt sphere head part is pressed on sphere chamber corresponding to leveling cushion block (6) upper end.
2. Large-power High-Speed rotating rectifier assembly according to claim 1, is characterized in that: described top board (11) and lower platen (12) are plectane, and panel edges is provided with U-shaped groove.
3. Large-power High-Speed rotating rectifier assembly according to claim 1, is characterized in that: described structure-steel framing (1), anode aluminium block (4) adopt aluminum alloy materials; Described cross-over block (2) adopts epoxy glass fabric plate material; Described lower copper bar (3) adopts red copper material.
4. Large-power High-Speed rotating rectifier assembly according to claim 1, is characterized in that: described top board (11) is provided with the negative electrode fairlead (14) that serves as whole assembly negative electrode interface.
5. Large-power High-Speed rotating rectifier assembly according to claim 1, is characterized in that: described anode aluminium block (4) is provided with the anode fairlead (21) that serves as whole assembly anode interface.
6. Large-power High-Speed rotating rectifier assembly according to claim 1, is characterized in that: described cross-over block (2) is designed with cannelure (17).
7. Large-power High-Speed rotating rectifier assembly according to claim 1, is characterized in that: it is dark that described upper groove (20) and low groove (18) are 0.5mm.
8. Large-power High-Speed rotating rectifier assembly according to claim 1, it is characterized in that: also comprise the alignment pin for the plate rectifier of location and installation (10), on described lower copper bar (3) and upper copper bar (5), be equipped with corresponding dowel hole (19).
9. Large-power High-Speed rotating rectifier assembly according to claim 1, is characterized in that: the spacing between described conductive lever (13) is less than the diameter of plate rectifier (10).
10. Large-power High-Speed rotating rectifier assembly according to claim 1, is characterized in that: quantity or the diameter of described negative electrode screw rod (9) are determined according to required size of current.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410259979.4A CN103997233B (en) | 2014-06-12 | 2014-06-12 | High-power high-speed rotating rectifier assembly |
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| CN201410259979.4A CN103997233B (en) | 2014-06-12 | 2014-06-12 | High-power high-speed rotating rectifier assembly |
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| CN103997233A true CN103997233A (en) | 2014-08-20 |
| CN103997233B CN103997233B (en) | 2017-01-11 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105489570A (en) * | 2016-01-19 | 2016-04-13 | 中国船舶重工集团公司第七0四研究所 | High-power semiconductor device pressing and assembling device |
| CN105515404A (en) * | 2016-01-19 | 2016-04-20 | 中国船舶重工集团公司第七0四研究所 | Medium-voltage rectifying device |
| CN107707131A (en) * | 2017-09-29 | 2018-02-16 | 梁靖玮 | The attachment structure of rectifier stack |
| CN112582892A (en) * | 2019-09-29 | 2021-03-30 | 中车株洲电力机车研究所有限公司 | High-voltage module and high-voltage cabinet comprising same |
| CN113489346A (en) * | 2021-06-09 | 2021-10-08 | 中国科学院电工研究所 | Rotary rectifier suitable for high-speed heavy current |
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| CN103683972A (en) * | 2012-09-19 | 2014-03-26 | 北京新创椿树整流器件有限公司 | High-power rotating rectifier module |
| CN103681520A (en) * | 2012-09-19 | 2014-03-26 | 北京新创椿树整流器件有限公司 | Blade type rotation rectification element |
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| US4896062A (en) * | 1988-06-03 | 1990-01-23 | Westinghouse Electric Corp. | Rotating rectifier assembly |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105489570A (en) * | 2016-01-19 | 2016-04-13 | 中国船舶重工集团公司第七0四研究所 | High-power semiconductor device pressing and assembling device |
| CN105515404A (en) * | 2016-01-19 | 2016-04-20 | 中国船舶重工集团公司第七0四研究所 | Medium-voltage rectifying device |
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| CN107707131A (en) * | 2017-09-29 | 2018-02-16 | 梁靖玮 | The attachment structure of rectifier stack |
| CN112582892A (en) * | 2019-09-29 | 2021-03-30 | 中车株洲电力机车研究所有限公司 | High-voltage module and high-voltage cabinet comprising same |
| CN112582892B (en) * | 2019-09-29 | 2023-03-21 | 中车株洲电力机车研究所有限公司 | High-voltage module and high-voltage cabinet comprising same |
| CN113489346A (en) * | 2021-06-09 | 2021-10-08 | 中国科学院电工研究所 | Rotary rectifier suitable for high-speed heavy current |
| WO2022257914A1 (en) * | 2021-06-09 | 2022-12-15 | 中国科学院电工研究所 | Rotary rectifier suitable for high speed and large current |
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|---|---|
| CN103997233B (en) | 2017-01-11 |
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