CN211830379U - Six-phase rectification direct-current generator - Google Patents
Six-phase rectification direct-current generator Download PDFInfo
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- CN211830379U CN211830379U CN202020647909.7U CN202020647909U CN211830379U CN 211830379 U CN211830379 U CN 211830379U CN 202020647909 U CN202020647909 U CN 202020647909U CN 211830379 U CN211830379 U CN 211830379U
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Abstract
The utility model discloses a six-phase rectification direct current generator, which relates to the technical field of generators and comprises a base and a box body fixed on the upper surface of the base, wherein a stator is arranged below the box body, two sets of stator windings with a difference of 30 electrical angles are embedded in a stator core, the box body is provided with a six-phase rectifier assembly, the six-phase rectifier assembly comprises a six-phase rectifier, a copper bar, a fan and a radiator, the six-phase rectifier comprises six rectification modules, and the two sets of stator windings are respectively and electrically connected to two rectification bridges in the rectification modules; two sets of three-phase windings are connected in star connection, neutral group points are mutually independent, each set of three-phase winding is connected in parallel after being connected with a rectification module, six-phase rectification output is achieved, a traditional commutation type direct current generator is replaced, the output voltage ripple factor is smaller than 2%, the voltage waveform distortion of the generator is small, the direct current voltage pulsation after rectification is small, and the generator is enabled to provide a stable direct current power supply.
Description
Technical Field
The utility model relates to a generator technical field, concretely relates to six-phase rectification DC generator.
Background
In order to support the continuously increasing mobile internet traffic demand, the communication network infrastructure in China is continuously expanded and upgraded. In addition, the development and construction of 5G networks in China and the continuous expansion of the investment scale of communication network equipment in overseas countries lead to the continuous increase of market demand of rectification direct current generators, and the generators can be used as power supplies required by excitation of direct current motors, electric smelting, charging and alternating current generators and are also suitable for key departments such as communication hubs, communication base stations, network data centers, data exchange centers, financial settlement centers, system scheduling centers and the like. The method conforms to the current social and economic big trend of sustainable development, environmental protection and the like, and has good development prospect. The existing direct current generator is of a reversing type, and has the defects of difficult manufacturing and maintenance of a commutator and a carbon brush, short service life, high cost and the like.
Disclosure of Invention
For solving the prior art problem, the utility model discloses an adopt two sets of three-phases to connect around the star to make neutral group point mutually independent, every set of three-phase winding connects parallelly connected behind the rectifier module respectively, realizes six looks rectification output, has replaced traditional switching-over formula DC generator, and makes output voltage ripple coefficient be less than 2%, realizes that generator voltage waveform distortion is little, and the rectification back DC voltage pulsation is little, realizes that the generator provides stable DC power supply.
The utility model discloses specifically adopt following technical scheme:
a six-phase rectification DC generator comprises a base and a box body fixed on the upper surface of the base,
a stator is arranged below the box body and used for fixing a stator core, two sets of stator windings with different electrical angles are embedded in the stator core, the two sets of stator windings are connected in a star shape, and neutral points of the two sets of stator windings after being connected are mutually independent;
the box body is provided with a six-phase rectifier assembly, the six-phase rectifier assembly comprises a six-phase rectifier, a copper bar, a fan and a radiator, the six-phase rectifier adopts a shunting structure, the six-phase rectifier comprises six rectifying modules, two adjacent rectifying modules are connected in parallel, and two sets of stator windings are respectively and electrically connected to two rectifying bridges in the rectifying modules;
the copper bar is connected with the rectifying module through a bolt, the fan is connected with the shell of the six-phase rectifier assembly through a bolt, and the radiator is cast on the shell of the six-phase rectifier assembly.
The engine base further comprises a front end cover and a rear end cover, the rear end of the engine base is connected with the rear end cover and fixed through bolts, and the front end of the engine base is connected with the front end cover and fixed through bolts.
The further scheme is that the device further comprises a rotor, and the rotor adopts an integral rotor structure.
The excitation box is connected with an installation angle chain on the machine base through bolts, the voltage regulator is connected with the excitation box through bolts, and the N-wire wiring board is welded on the machine base.
Further, the six-phase rectifying device is arranged in the excitation box.
The further scheme is that the two sets of stator windings are distributed windings.
The utility model has the advantages that:
two sets of three-phase windings are connected in star connection, neutral group points are mutually independent, each set of three-phase winding is connected with a rectification module and then connected in parallel, six-phase rectification output is realized, the traditional commutation type direct current generator is replaced, the generator synthesis harmonic magnetic type only contains gamma which is 12n +/-1 and gamma which is 12n +/-mu harmonic magnetic type except the fundamental wave magnetic type, and the rest are mutually offset, so that the output voltage ripple coefficient is less than 2%, the distortion of the voltage waveform of the generator is small, the direct current voltage after rectification is small in pulsation, and the generator is realized to provide a stable direct current power supply;
the six-phase rectifier adopts a shunt structure to shunt concentrated large current;
the six rectifier modules are connected in parallel, so that even if one of the rectifier modules fails, the generator cannot generate cliff-type fluctuation to cause damage to other devices;
the rectifier assembly is provided with the fan, so that the rectifier assembly is cooled in an air cooling mode, and the heat dissipation performance of the rectifier device is improved;
the rotor adopts an integral rotor winding technology, so that compared with a split rotor, the mechanical stability of the rotor is enhanced, and a secondary gap generated during installation can be avoided;
and the two sets of three-phase windings are distributed at integral distances, and have better heat dissipation performance than the conventional concentrated integral-distance windings.
Drawings
Fig. 1 is a schematic structural diagram of a six-phase rectifier assembly according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a rectifier module according to an embodiment of the present invention;
fig. 3 is a schematic view of a heat sink according to an embodiment of the present invention;
fig. 4 is a wiring diagram of a rectifier module according to an embodiment of the present invention;
fig. 5 is an assembly diagram of a dc generator according to an embodiment of the present invention;
fig. 6 is a plan view of a stator winding according to an embodiment of the present invention;
the attached drawings are marked as follows: 1-a machine base; 10-a stator; 11-front end cap; 12-rear end cap; 13-a rotor; 2-a box body; 40-a rectifying module; 41-copper bar; 42-a fan; 43-a heat sink; 50-an excitation box; 51-voltage regulator 51; 52-N wire patch panel.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1-6, an embodiment of the utility model discloses a six-phase rectification dc generator, which comprises a frame 1 and a box body 2 fixed on the upper surface of the frame 1, wherein a stator 10 is arranged below the box body 2, the stator 10 is used for fixing a stator core, two sets of stator windings with a difference of 30 electrical angles are embedded in the stator core, the two sets of stator windings are connected in a star shape, and neutral points of the two sets of stator windings after being connected are mutually independent; the box body 2 is provided with a six-phase rectifier assembly, the six-phase rectifier assembly comprises a six-phase rectifier, a copper bar 41, a fan 42 and a radiator 43, the six-phase rectifier adopts a shunting structure, the six-phase rectifier comprises six rectifying modules 40, two adjacent rectifying modules 40 are connected in parallel, and two sets of stator windings are respectively and electrically connected to two rectifying bridges in the rectifying modules 40; the copper bar 41 is connected with the rectifier module 40 through bolts, the fan 42 is connected with the shell of the six-phase rectifier assembly through bolts, and the heat radiator 43 is cast on the shell of the six-phase rectifier assembly. Two sets of three-phase windings are connected in star connection, neutral group points are mutually independent, each set of three-phase winding is connected with a rectification module and then connected in parallel, six-phase rectification output is realized, the traditional commutation type direct current generator is replaced, the generator synthesis harmonic magnetic type only contains gamma which is 12n +/-1 and gamma which is 12n +/-mu harmonic magnetic type except the fundamental wave magnetic type, and the rest are mutually offset, so that the output voltage ripple coefficient is less than 2%, the distortion of the voltage waveform of the generator is small, the direct current voltage after rectification is small in pulsation, and the generator is realized to provide a stable direct current power supply; the six-phase rectifier adopts a shunt structure to shunt concentrated large current; the six rectifier modules are connected in parallel, so that even if one of the rectifier modules fails, the generator cannot generate cliff-type fluctuation to cause damage to other devices; the rectifier assembly is provided with the fan, so that the rectifier assembly is cooled in an air cooling mode, and the heat dissipation performance of the rectifier device is improved; the six-phase rectifier adopts a shunt structure to shunt concentrated large current; the six rectifier modules are connected in parallel, and even if one of the rectifier modules fails, the generator cannot generate cliff type fluctuation to cause damage to other devices. The rectifier assembly is provided with the fan, so that the rectifier assembly is cooled in an air cooling mode, and the heat dissipation performance of the rectifier device is improved;
in this embodiment, the engine base further includes a front end cover 11 and a rear end cover 12, the rear end of the engine base 1 is connected with the rear end cover 12 and fixed by bolts, and the front end of the engine base 1 is connected with the front end cover 11 and fixed by bolts. The front end cover 11 is connected with one end of the stator 10, the rear end cover 12 is arranged at the other end of the stator 10, the rotor 13 is further included, and the rotor 13 is of an integral rotor structure.
In this embodiment, the box body 2 is further provided with an excitation box 50, a voltage regulator 51 and an N-wire wiring board 52, the excitation box 50 is connected with an installation angle chain on the base 1 through bolts, the voltage regulator 51 is connected with the excitation box 50 through bolts, and the N-wire wiring board 52 is welded on the base 1; the six-phase rectifying device is arranged in the excitation box 50.
In this embodiment, both sets of stator windings are distributed windings. And the distributed winding is adopted, so that the heat dissipation performance is better than that of the conventional concentrated integral-pitch winding.
Finally, only the specific embodiments of the present invention have been described in detail. The invention is not limited to the specific embodiments described above. Equivalent modifications and substitutions by those skilled in the art to the present invention are also within the scope of the present invention. Accordingly, variations and modifications in equivalents may be made without departing from the spirit and scope of the invention, which is intended to be covered by the following claims.
Claims (6)
1. The utility model provides a six-phase rectification DC generator, includes frame (1) and fixes box (2) of frame (1) upper surface, its characterized in that:
a stator (10) is arranged below the box body (2), the stator (10) is used for fixing a stator core, two sets of stator windings with an electric angle difference of 30 degrees are embedded in the stator core, the two sets of stator windings are connected in a star-shaped mode, and neutral points of the two sets of stator windings after connection are mutually independent;
the box body (2) is provided with a six-phase rectifier assembly, the six-phase rectifier assembly comprises a six-phase rectifier, a copper bar (41), a fan (42) and a radiator (43), the six-phase rectifier adopts a shunting structure, the six-phase rectifier comprises six rectifying modules (40), two adjacent rectifying modules (40) are connected in parallel, and two sets of stator windings are respectively and electrically connected to two rectifying bridges in the rectifying modules (40);
the copper bar (41) is connected with the rectifying module (40) through bolts, the fan (42) is connected with the shell of the six-phase rectifier assembly through bolts, and the radiator (43) is cast on the shell of the six-phase rectifier assembly.
2. A six-phase rectified dc generator according to claim 1, wherein:
the engine base is characterized by further comprising a front end cover (11) and a rear end cover (12), the rear end of the engine base (1) is connected with the rear end cover (12) and fixed through bolts, and the front end of the engine base (1) is connected with the front end cover (11) and fixed through bolts.
3. A six-phase rectified dc generator according to claim 2, wherein:
the rotor structure further comprises a rotor (13), and the rotor (13) is of an integral rotor structure.
4. A six-phase rectified dc generator according to claim 1, wherein:
still be provided with in box (2) and encourage magnetic box (50), voltage regulator (51) and N line wiring board (52), encourage magnetic box (50) through the bolt with installation angle chain on frame (1) is connected, voltage regulator (51) through the bolt with encourage magnetic box (50) to link to each other, N line wiring board (52) welding is in on frame (1).
5. A six-phase rectified DC generator according to claim 4, wherein:
the six-phase rectifying device is arranged in the excitation box (50).
6. A six-phase rectified dc generator according to claim 1, wherein:
and the two sets of stator windings are distributed windings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020647909.7U CN211830379U (en) | 2020-04-24 | 2020-04-24 | Six-phase rectification direct-current generator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020647909.7U CN211830379U (en) | 2020-04-24 | 2020-04-24 | Six-phase rectification direct-current generator |
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| CN211830379U true CN211830379U (en) | 2020-10-30 |
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| CN202020647909.7U Active CN211830379U (en) | 2020-04-24 | 2020-04-24 | Six-phase rectification direct-current generator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112701858A (en) * | 2020-12-17 | 2021-04-23 | 金路达集团有限公司 | Claw pole brushless synchronous generator system for armored vehicle |
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2020
- 2020-04-24 CN CN202020647909.7U patent/CN211830379U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112701858A (en) * | 2020-12-17 | 2021-04-23 | 金路达集团有限公司 | Claw pole brushless synchronous generator system for armored vehicle |
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