CN202978651U - Brushless excitation synchronous generator rotating rectifier device - Google Patents
Brushless excitation synchronous generator rotating rectifier device Download PDFInfo
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- CN202978651U CN202978651U CN 201220654278 CN201220654278U CN202978651U CN 202978651 U CN202978651 U CN 202978651U CN 201220654278 CN201220654278 CN 201220654278 CN 201220654278 U CN201220654278 U CN 201220654278U CN 202978651 U CN202978651 U CN 202978651U
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- rectifier
- rectifying
- conducting ring
- synchronous generator
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Abstract
The utility model discloses a brushless excitation synchronous generator rotating rectifier device. The device comprises a rectifying disc connected with a steel sleeve through a bolt, and the steel sleeve is thermally sleeved on an exciter shaft; the rectifying disc is equipped with a three-phase rectifier bridge which is composed of rectifying elements; the rectifying elements are installed on a conductive pad and forms an upper layer and a lower layer; direct current output terminals of the rectifying elements are respectively connected with an upper conducting ring or a lower conducting ring according to output relation; and a plurality of the rectifying elements at the upper layer and the lower layer are in the electric connection relationship of parallel connection at first and series connection next. The device provided by the utility model has a simple structure, the rectifying elements in the rectifier device are uniformly arranged on the inner wall of the rectifying disc through a layered structure, so integral stress is more uniform and stable, and installation and dismounting are convenient; a plurality of the rectifying elements are employed in the rectifier device and are in parallel connection, which enables influence of damage of a single rectifying element on a rectifying effect to be avoided, so the rectifier device is more stable, influence of centrifugal force is reduced, and work efficiency is substantially improved.
Description
Technical field
The utility model relates to technical field of motors, relates in particular to a kind of brushless excitation synchronous generator rotary rectification device.
Background technology
Rotating rectifier dish is the important component part of enhanced brushless excitation generator, be also the core of brushless excitation system, the rotating rectifier dish device can be in the situation that the alternating current that High Rotation Speed produces AC exciter becomes DC power supply output after by the rectification module rectification.
At present, the overall structure of rotating rectifier dish device be there is no unified regulation and requirement both at home and abroad, its general structure is generally that the performance requirement according to the structural design of brushless synchronous machine and system sets, such as, the rotating rectifier dish device generally comprises rectification module, anodal connecting ring and negative pole connecting ring, on the unified installation of above-mentioned parts and rectifying disc, rectifying disc has centre bore, rotating shaft for brushless synchronous machine runs through, driven rotary rectifying disc device synchronous rotary in the time of the rotating shaft rotation.
in existing technology, the general structure of rotating rectifier dish device and performance pattern are various, but the connected mode of rectification module and rectifying disc is roughly the same, all be fixed on rectifying disc by securing member (as screw), this fixed form fixing is not enough, rotation along with rectifying disc, general generator working speed is at 3000 rev/mins, rectifying device and supporting erecting device thereof will bear very large rotary centrifugal force, existing rectifying device mostly is large capacity in addition, the synchronous generator exciting electric current reaches kiloampere, the self-radiating of rectifying device also can be very large, existing rotary rectification device often causes rotating rectifier dish to lose rectified action due to centrifugal force and heat dissipation problem, further cause brushless synchronous machine to work.
The utility model content
The purpose of this utility model is to provide a kind of brushless excitation synchronous generator rotary rectification device, equipment safety is reliable, repair demolition is convenient and greatly reduce rectifying device because of centrifugal force makes motor can't rectification or can't the work generation of phenomenon of generator.
The utility model adopts following technical proposals:
a kind of brushless excitation synchronous generator rotary rectification device, comprise and put together on the rectifying disc of hot jacket on the exciter shaft steel bushing, the three-phase commutation bridge that is comprised of rectifier cell is housed on described rectifying disc, described three-phase commutation bridge is comprised of three groups of rectifier bridges, the ac input end of described three groups of rectifier bridges is used for joining with the three-phase alternating current of exciter rotor by the contact screw that passes rectifying disc, the dc output end of three groups of rectifier bridges is used for being connected with the main generator rotor coil by conducting ring and both positive and negative polarity connecting ring and the conducting rod that is loaded on exciter axis hole center, described rectifying disc inwall is equipped with the conductive spacer of three mutually insulateds, be provided with insulation spacer between described conductive spacer and rectifying disc, the rectifier cell of described every group of rectifier bridge divides the up and down two-layer being arranged on conductive spacer, described conducting ring is upper conducting ring and the lower conducting ring that is contained on the insulating sleeve of being located on exciter shaft, the dc output end of a plurality of rectifier cells of every group of rectifier bridge is connected with upper conducting ring or lower conducting ring respectively according to output relation, a plurality of rectifier cells of levels adopt the electrical connection of series connection afterwards in parallel.
The rectifier cell of described every group of rectifier bridge comprises four rectifier diodes of four, upper strata rectifier diode and lower floor, the dc output end of described rectifier cell is connected with upper conducting ring or lower conducting ring respectively according to output relation by the flexible cord structure, and a plurality of rectifier cells of levels adopt the electrical connection of series connection afterwards in parallel.
Described every group of rectifier cell at the middle and upper levels four rectifier diodes of four rectifier diodes and lower floors for first respectively parallel connection be connected in series again.
Be provided with between described three conductive spacers be used to the trapezoidal insulating fixing piece that prevents that conductive spacer is loosening.
Be provided with on described conductive spacer two-layer totally eight the first fixing holes that are used for fixing diode in up and down, a plurality of for fixing conductive spacer to the second fixing hole and a plurality of ventilation hole of rectifying disc.
The utility model is simple in structure, by layer structure, the rectifier cell in rectifying device evenly is arranged on the rectifying disc inwall, makes integral body stressed more evenly, stable, and easy installation and removal.When adopting a plurality of rectifier cells to carry out parallel connection in rectifying device to have avoided single rectifier cell to damage on the impact of rectification effect, the output of rectifier cell adopts the flexible cord structure to connect, make rectifying device more stable, reduced the impact of centrifugal force, improved greatly operating efficiency.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is that the A of Fig. 1 is to cutaway view;
Fig. 3 is the structural representation of conductive spacer described in the utility model;
Fig. 4 is schematic block circuit diagram of the present utility model.
Embodiment
as Fig. 1, 2, 3, shown in 4, a kind of brushless excitation synchronous generator rotary rectification device, comprise and put together on the rectifying disc 3 of hot jacket on exciter shaft 1 steel bushing 2, on described rectifying disc 3, the three-phase commutation bridge that is comprised of rectifier cell is housed, described three-phase commutation bridge is comprised of three groups of rectifier bridges, the ac input end of described three groups of rectifier bridges is used for joining with the three-phase alternating current of exciter rotor by the contact screw 10 that passes rectifying disc, the dc output end of three groups of rectifier bridges passes through conducting ring, anodal connecting ring 11 and negative pole connecting ring 13 and the conducting rod 12 that is loaded on exciter shaft 1 center, hole are used for being connected with the main generator rotor coil, described rectifying disc 3 inwalls are equipped with the conductive spacer 4 of three mutually insulateds, be provided with insulation spacer 5 between described conductive spacer 4 and rectifying disc 3, the rectifier cell of described every group of rectifier bridge divides the up and down two-layer being arranged on conductive spacer 4.Described conducting ring is upper conducting ring 9 and the lower conducting ring 16 that is contained on the insulating sleeve 8 of being located on exciter shaft, the dc output end of a plurality of rectifier cells of every group of rectifier bridge is connected with upper conducting ring 9 or lower conducting ring 16 respectively according to output relation, and a plurality of rectifier cells of levels adopt the electrical connection of series connection afterwards in parallel.Rectifier cell is generally rectifier diode, and the following rectifier diode 6 that uses of the utility model replaces rectifier cell.
The rectifier cell of described every group of rectifier bridge comprises four rectifier diodes 6 of four, upper strata rectifier diode 6 and lower floor, the dc output end of described rectifier cell is connected with upper conducting ring 9 or lower conducting ring 16 respectively according to output relation by flexible cord structure 15, makes a plurality of rectifier cells of levels adopt the electrical connection of series connection afterwards in parallel.The dc output end of rectifier cell adopts flexible cord structure 15.So not only can effectively reduce diode 6 deviation of gravity center axle center radiuses, thereby minimizing centrifugal force, and make the rectifying disc external diameter reduce, thereby overall dimensions reduces, conserve space and material cost, can also realize in every group of rectifier bridge eight any four parallel connections of rectifier diode 6 again the rectifier diode 6 in parallel with four of residues mutually be connected in series, connected mode can flexible choice.
Described every group of rectifier cell at the middle and upper levels four rectifier diodes 6 of four rectifier diodes 6 and lower floors for first respectively parallel connection be connected in series again.Connect like this and make installation, convenient disassembly quick, and seem neat.
Be provided with between described three conductive spacers 4 be used to the trapezoidal insulating fixing piece 7 that prevents that conductive spacer 4 is loosening.Trapezoidal insulating fixing piece 7 not only can make insulation isolation between a plurality of conductive cushion blocks 4, also can reduce equipment and make the loosening phenomenon of conductive spacer 4 because of High Rotation Speed.
As shown in Figure 3, be provided with on described each conductive spacer 4 up and down two-layer totally eight the first fixing hole 30 that is used for fixing diode, a plurality of for fixing conductive spacer to the second fixing hole 32 and a plurality of ventilation hole 33 of rectifying disc.Ventilation hole 33 not only can increase the heat radiation of rectifier diode 6, and can reduce the weight of rectifying device, the size of suffered centrifugal force during whole minimizing work.
Upper and lower conducting ring described in the utility model adopts the forging copper to become, and intensity is high, and the current-carrying area is large and large with the air contact area, good heat dissipation effect.
the form of the utility model by using a plurality of rectifier diode 6 parallel connections to connect again, thereby increased the rectification effect of rectifier bridge, and guarantee can not have influence on rectification effect when single rectifier diode 6 situation occurs because heat radiation or centrifugal force are excessive, thereby generator can not stopped immediately, a plurality of louvres 33 are set in rectifying device, louvre on collocation rectifying disc 3, make device heat radiation itself better, and by maximized weight reduction, make rectifying disc 3 device life cycles longer, and a plurality of rectifier diodes 6 use, understructure, be arranged on rectifying disc 3 by conductive spacer 4, change, quick and easy for installation, for the brushless synchronous machine normal operation provides safeguard.
Claims (5)
1. brushless excitation synchronous generator rotary rectification device, comprise and put together on the rectifying disc of hot jacket on the exciter shaft steel bushing, the three-phase commutation bridge that is comprised of rectifier cell is housed on described rectifying disc, described three-phase commutation bridge is comprised of three groups of rectifier bridges, the ac input end of described three groups of rectifier bridges is used for joining with the three-phase alternating current of exciter rotor by the contact screw that passes rectifying disc, the dc output end of three groups of rectifier bridges is used for being connected with the main generator rotor coil by conducting ring and both positive and negative polarity connecting ring and the conducting rod that is loaded on exciter axis hole center, it is characterized in that: described rectifying disc inwall is equipped with the conductive spacer of three mutually insulateds, be provided with insulation spacer between described conductive spacer and rectifying disc, the rectifier cell of described every group of rectifier bridge divides the up and down two-layer being arranged on conductive spacer, described conducting ring is upper conducting ring and the lower conducting ring that is contained on the insulating sleeve of being located on exciter shaft, the dc output end of a plurality of rectifier cells of every group of rectifier bridge is connected with upper conducting ring or lower conducting ring respectively according to output relation, a plurality of rectifier cells of levels adopt the electrical connection of series connection afterwards in parallel.
2. brushless excitation synchronous generator rotary rectification device according to claim 1, it is characterized in that: the rectifier cell of described every group of rectifier bridge comprises four rectifier diodes of four, upper strata rectifier diode and lower floor, the dc output end of described rectifier cell is connected with upper conducting ring or lower conducting ring respectively according to output relation by the flexible cord structure, and a plurality of rectifier cells of levels adopt the electrical connection of series connection afterwards in parallel.
3. brushless excitation synchronous generator rotary rectification device according to claim 2 is characterized in that: described every group of rectifier cell at the middle and upper levels four rectifier diodes of four rectifier diodes and lower floors for first respectively parallel connection be connected in series again.
4. brushless excitation synchronous generator rotary rectification device according to claim 3, is characterized in that: be provided with between described three conductive spacers be used to the trapezoidal insulating fixing piece that prevents that conductive spacer is loosening.
5. brushless excitation synchronous generator rotary rectification device according to claim 4 is characterized in that: be provided with on described conductive spacer two-layer totally eight the first fixing holes that are used for fixing diode in up and down, a plurality of for fixing conductive spacer to the second fixing hole and a plurality of ventilation hole of rectifying disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220654278 CN202978651U (en) | 2012-12-03 | 2012-12-03 | Brushless excitation synchronous generator rotating rectifier device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220654278 CN202978651U (en) | 2012-12-03 | 2012-12-03 | Brushless excitation synchronous generator rotating rectifier device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202978651U true CN202978651U (en) | 2013-06-05 |
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ID=48519674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220654278 Expired - Fee Related CN202978651U (en) | 2012-12-03 | 2012-12-03 | Brushless excitation synchronous generator rotating rectifier device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202978651U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103580345A (en) * | 2013-11-14 | 2014-02-12 | 无锡星诺电气有限公司 | Main rotor assembly of high-voltage generator |
| CN111082623A (en) * | 2018-10-19 | 2020-04-28 | 东芝三菱电机产业系统株式会社 | Rotary rectifier |
| CN114301207A (en) * | 2021-12-27 | 2022-04-08 | 中车永济电机有限公司 | Excitation line fixing structure of rotary rectifying device of brushless synchronous generator |
-
2012
- 2012-12-03 CN CN 201220654278 patent/CN202978651U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103580345A (en) * | 2013-11-14 | 2014-02-12 | 无锡星诺电气有限公司 | Main rotor assembly of high-voltage generator |
| CN111082623A (en) * | 2018-10-19 | 2020-04-28 | 东芝三菱电机产业系统株式会社 | Rotary rectifier |
| CN114301207A (en) * | 2021-12-27 | 2022-04-08 | 中车永济电机有限公司 | Excitation line fixing structure of rotary rectifying device of brushless synchronous generator |
| CN114301207B (en) * | 2021-12-27 | 2024-04-19 | 中车永济电机有限公司 | Excitation wire connection fixing structure of brushless synchronous generator rotary rectifying device |
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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: 20130605 Termination date: 20151203 |
|
| EXPY | Termination of patent right or utility model |