CN220368570U - Brushless exciter rectifying ring structure - Google Patents
Brushless exciter rectifying ring structure Download PDFInfo
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- CN220368570U CN220368570U CN202321381086.8U CN202321381086U CN220368570U CN 220368570 U CN220368570 U CN 220368570U CN 202321381086 U CN202321381086 U CN 202321381086U CN 220368570 U CN220368570 U CN 220368570U
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- fuse
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Abstract
The utility model belongs to the technical field of brushless exciter in a turbo generator, and particularly relates to a brushless exciter rectifying ring structure which is small in size, light in weight, high in reliability, compact in structure and convenient to assemble, disassemble and maintain. The device comprises a ring body and a plurality of groups of diodes arranged in the ring body, wherein each group of diodes comprises a forward diode and a reverse diode; and a plurality of fuses are also arranged in the ring body, two fuses are arranged between two adjacent groups of diodes, and each fuse is connected with the diode closest to the fuse through a connecting sheet. The utility model optimizes the structure of the traditional exciter rectifying ring, discards the complex structural mode of multi-disc switching, realizes the aim that all components can be assembled in one disc, has the advantages of saving cost, small volume, light weight, high reliability, compact structure and convenient maintenance, and simultaneously avoids the defects of exceeding of motor vibration value and diversification of running problems to a large extent due to simple structure and single pole.
Description
Technical Field
The utility model belongs to the technical field of brushless exciter in a turbo generator, and particularly relates to a brushless exciter rectifying ring structure which is small in size, light in weight, high in reliability, compact in structure and convenient to assemble, disassemble and maintain.
Background
The rectifier is an important component of the brushless excitation system of the generator and is of great importance to the performance of the exciter and even the performance influence of the whole generator. The rectifier is used for rectifying the three-phase symmetrical potential induced by the rotating armature of the AC exciter into DC potential and inputting the DC potential to the exciting winding of the generator rotor for excitation. The rectifier has a stationary rectifier and a rotating rectifier, and in a synchronous generator with a large capacity, a rotating rectifier excitation system which does not need brushes and collector rings is often used. However, the rectifying ring structure adopted in the conventional turbo generator is relatively complex, and the structure is generally that a forward diode and a reverse diode are respectively arranged in different discs, and the two discs are separated by an insulating material and then are overlapped. The complicated structure can make the cost of manufacture increase, and the running problem is diversified, and because the rectifier ring is as rotary device, many times switching, great volume and weight still probably influence exciter rotor's balance, and then make motor vibration superscalar, consequently whether can solve the structural problem of rectifier ring through the structural modification to the rectifier ring and its inside components and parts.
The utility model discloses a superimposed horseshoe rectifier bridge, which comprises a horseshoe cast aluminum positive plate, a horseshoe cast aluminum negative plate, a W-phase output bolt insulation column and a B+ output bolt insulation column, wherein the horseshoe cast aluminum positive plate is provided with a plurality of forward diodes, and the horseshoe cast aluminum negative plate is provided with a plurality of reverse diodes. However, in the same manufacturing process of the whole structure, the forward diode and the reverse diode are respectively arranged on different plate bodies, so that the balance of the exciter rotor can be influenced, and the problem of motor vibration exceeding is solved.
Disclosure of Invention
In order to solve the technical problems, the utility model provides a brushless exciter rectifying ring structure, which can solve the problems of complex rectifying ring structure, high manufacturing cost, diversified operation problems and easy exceeding of motor vibration in the prior art.
The utility model discloses a brushless exciter rectifying ring structure which comprises:
the device comprises a ring body and a plurality of groups of diodes arranged in the ring body, wherein each group of diodes comprises a forward diode and a reverse diode;
and a plurality of fuses are also arranged in the ring body, two fuses are arranged between two adjacent groups of diodes, and each fuse is connected with the diode closest to the fuse through a connecting sheet.
Further preferably, each group of diodes is mounted on the same heat sink, and an insulating material is mounted between the heat sink and the ring body.
Further preferably, each of the forward diode and the reverse diode is connected in series with the fuse.
Further preferably, the insulating material is also installed between the bottoms of the plurality of fuses and the ring body.
Further preferably, a plurality of screws are arranged outside the ring body and used for fixing the ring body to the inside of the motor.
The beneficial effects of the utility model are as follows:
the forward diode and the reverse diode are directly arranged in one disc, the radiating fin for radiating and the fuse for protecting a circuit are reasonably arranged in the middle, the structure of the traditional exciter rectifying ring is optimized, the complex structural mode of multi-disc switching is abandoned, the aim that all components can be assembled in one disc is fulfilled, and the device has the advantages of saving cost, small volume, light weight, high reliability, compact structure and convenience in maintenance, and meanwhile, the defects of excessive motor vibration value and diversified operation problems are avoided to a large extent due to simple structure and single pole; and the heat radiating fin and the shell, and the fuse and the shell are separated by insulating materials, so that complete insulation between the electricity in the rectifying ring is ensured.
Drawings
Fig. 1 is a schematic diagram of a brushless exciter rectifying ring structure of the present utility model.
Fig. 2 is an equivalent circuit diagram of a brushless exciter rectifying ring structure of the present utility model.
Reference numerals: 1: forward diode, 2: reverse diode, 3: insulating material, 4: insulating material, 5: fuse, 6: heat sink, 7: connection piece, 8: screw, 9: turbo generator rotor winding, 10: detection slip ring, brush, 11: rectifying ring, 12: ac exciter armature, 13: exciter outlet box.
Detailed Description
In order to further describe the technical means and effects adopted by the present utility model for achieving the intended purpose, the following detailed description will refer to the specific implementation, structure, characteristics and effects according to the present utility model with reference to the accompanying drawings and preferred embodiments.
It should be noted that, in the present application, unless otherwise stated, terms of orientation such as "upper, lower, top, bottom" are used generally with respect to the direction shown in the drawings, or with respect to the component itself in the vertical, vertical or gravitational direction; also, for ease of understanding and description, "inner and outer" refers to inner and outer relative to the profile of each component itself, but the above-mentioned orientation terms are not intended to limit the present utility model.
Examples
As shown in fig. 1-2, a brushless exciter rectifying ring structure comprises a ring body and three groups of diodes installed in the ring body, wherein each group of diodes comprises a forward diode 1 and a reverse diode 2.
Six fuses 5 are also installed in the ring body, two fuses 5 are installed between two adjacent groups of diodes, and each fuse 5 is connected with the diode closest to the fuse 5 through a connecting sheet 7.
In the brushless exciter rectifying ring structure, three groups of diodes form a three-phase rectifying bridge, wherein each forward diode 1 and each reverse diode 2 are connected in series with a fuse 5, when the diodes break down and short circuit, the corresponding fuses 5 are fused, so that the fault diodes can be separated from the circuit.
Each group of diodes is placed on the same radiating fin 6 after drilling operation, and an insulating material 3 is arranged between the radiating fin 6 and the ring body. The insulating material 3 is also installed between the bottoms of the six fuses 5 and the ring body. The insulating material 3 is installed between the heat sink 6/fuse 5 and the ferrule to ensure complete insulation between the heat sink 6/fuse 5 and the ferrule. The diode is fixed on the radiating fin 6, so that heat in the operation process is guaranteed to be effectively radiated from the radiating fin 6, and the heat radiation of the rectifying ring can be well solved.
The ring body is externally provided with a plurality of screws 8 for fixing the ring body to the interior of the motor.
The present utility model is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present utility model.
Claims (5)
1. The utility model provides a brushless exciter commutating ring structure which characterized in that:
the device comprises a ring body and a plurality of groups of diodes arranged in the ring body, wherein each group of diodes comprises a forward diode and a reverse diode;
and a plurality of fuses are also arranged in the ring body, two fuses are arranged between two adjacent groups of diodes, and each fuse is connected with the diode closest to the fuse through a connecting sheet.
2. A brushless exciter rectifying ring structure according to claim 1, characterized in that each set of said diodes is mounted on the same heat sink, said heat sink and said ring body being mounted with insulating material therebetween.
3. A brushless exciter rectifying ring structure according to claim 2, characterized in that each of said forward diode and said reverse diode is connected in series with said fuse.
4. A brushless exciter rectifying ring structure according to claim 3, characterized in that said insulating material is equally mounted between the bottoms of said fuses and said ring body.
5. A brushless exciter rectifying ring structure according to claim 4, characterized in that said ring body is externally provided with a plurality of screws for fixing said ring body to the inside of the motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321381086.8U CN220368570U (en) | 2023-06-01 | 2023-06-01 | Brushless exciter rectifying ring structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321381086.8U CN220368570U (en) | 2023-06-01 | 2023-06-01 | Brushless exciter rectifying ring structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220368570U true CN220368570U (en) | 2024-01-19 |
Family
ID=89517519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321381086.8U Active CN220368570U (en) | 2023-06-01 | 2023-06-01 | Brushless exciter rectifying ring structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220368570U (en) |
-
2023
- 2023-06-01 CN CN202321381086.8U patent/CN220368570U/en active Active
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