CN216252434U - Outdoor brushless excitation synchronous motor - Google Patents
Outdoor brushless excitation synchronous motor Download PDFInfo
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- CN216252434U CN216252434U CN202122832403.0U CN202122832403U CN216252434U CN 216252434 U CN216252434 U CN 216252434U CN 202122832403 U CN202122832403 U CN 202122832403U CN 216252434 U CN216252434 U CN 216252434U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
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- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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Abstract
The utility model discloses an outdoor brushless excitation synchronous motor which comprises a rotor (1), a front end bearing (2), an end cover (3), an air cooler (4), a stator (5), a rear end bearing (6), an exciter (7), a chassis (8), a wire outlet box (9) and a temperature measurement wire outlet box (10); the rotor (1), the front end bearing (2), the stator (5), the rear end bearing (6) and the exciter (7) are respectively arranged on the underframe (8) and are sequentially connected in sequence; the two end covers (3) are respectively arranged at two ends of the stator (5), and the front end bearing (2) and the rear end bearing (6) are respectively positioned at two sides of the end covers (3); the air cooler (4) is arranged at the top end of the stator (5); the outlet box (9) and the temperature measuring outlet box (10) are respectively arranged on the outer surface of the stator (5). The generator structure, the protection grade, the arrangement type and the like meet the requirements of outdoor operation, and the application range is wider.
Description
Technical Field
The utility model relates to a generator, in particular to an outdoor brushless excitation synchronous motor.
Background
Synchronous motors, like induction motors (i.e., asynchronous motors), are commonly used ac motors. The synchronous motor is a heart of a power system, integrates rotation and static, electromagnetic change and mechanical movement, realizes conversion of electric energy and mechanical energy, has very complex dynamic performance, and has great influence on the dynamic performance of the full power system. Operation as a motor is another important mode of operation of a synchronous machine. The power factor of the synchronous motor can be adjusted, and the operation efficiency can be improved by applying a large synchronous motor on occasions without speed regulation. Small synchronous motors are beginning to find more applications in variable frequency speed control systems.
The synchronous motor can also be connected to a power grid to serve as a synchronous compensator. The motor has no mechanical load, and the required inductive or capacitive reactive power is sent to the power grid by adjusting the exciting current in the rotor, so as to achieve the purpose of improving the power factor of the power grid or adjusting the voltage of the power grid.
Synchronous generators, like other types of rotating electrical machines, are composed of two main parts, a fixed stator and a rotatable rotor. Generally classified into a rotating field type synchronous motor and a rotating armature type synchronous motor.
The most common is a rotating field synchronous generator, in which stator slots are uniformly distributed on the inner circle of the stator core, and three-phase symmetrical windings are embedded in the slots and arranged according to a rule. The stator of such a synchronous machine is also called an armature, and the stator core and the winding are also called an armature core and an armature winding.
The rotor core is provided with a pair of magnetic poles formed in a definite shape, and the magnetic poles are wound with an excitation winding, so that when a direct current is applied, a distributed magnetic field with alternate polarities is formed in an air gap of the motor, and the magnetic field is called an excitation magnetic field (also called a main magnetic field and a rotor magnetic field).
The prime mover drives the rotor to rotate (mechanical energy is input to the motor), and the excitation magnetic field with the alternate polarities rotates along with the shaft and sequentially cuts each phase winding of the stator (equivalent to the conductor of the winding reversely cuts the excitation magnetic field).
Synchronous machines are divided into synchronous generators and synchronous motors. Alternators in modern power plants are based on synchronous generators. The synchronous generator is generally installed in a power generation plant, and the arrangement type, the structure and the like of the synchronous generator cannot meet the requirements of outdoor environment. Like patent (application number is CN 201310328241.4) 60Hz full rotational speed turbo generator, this patent discloses a 60Hz full rotational speed turbo generator, it includes stator (1), rotor (2), bearing (3), air cooler (4) and chassis (5), stator (1) both ends are equipped with end cover (3), the center of stator (1) and end cover (3) is passed to the one end of rotor (2) and fixes on chassis (6) through bearing (4) that are located one side end cover (3) outside, stator (1) top is equipped with air cooler (5). The utility model discloses an adopt high strength material to make to be equipped with a plurality of ventilation grooves, mechanical properties is good, ventilation cooling is fast, and the rule is convenient with the maintenance, can reduce the loss of generator, reduces the cost of overhaul, satisfies full rotational speed turbo generator's high rotational speed mechanical strength requirement, and structural design is reasonable, can provide technical support for developing wide 60Hz turbo generator market abroad.
When people do outdoor work, particularly when emergency rescue is carried out, a large amount of electric energy is often needed to drive equipment to operate, and therefore the outdoor generator becomes necessary equipment when people do outdoor work.
However, extreme weather such as rain and sand storm is often encountered during outdoor operation, for example, during flood fighting, the outdoor generator with the motor and the terminal exposed is greatly threatened, and the equipment is easily damaged.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects of the prior art and provides an outdoor brushless excitation synchronous motor.
The purpose of the utility model is realized by the following technical scheme:
an outdoor brushless excitation synchronous motor comprises a rotor, a front end bearing, an end cover, an air cooler, a stator, a rear end bearing, an exciter, a chassis, a wire outlet box and a temperature measurement wire outlet box; the rotor, the front end bearing, the stator, the rear end bearing and the exciter are sequentially connected in sequence; the rotor, the front end bearing, the stator, the rear end bearing and the exciter are respectively mounted on a chassis; the two end covers are respectively arranged at two ends of the stator, and the front end bearing and the rear end bearing are respectively positioned at two sides of the end covers; the air cooler is arranged at the top end of the stator; the outlet box and the temperature measuring outlet box are respectively arranged on the outer surface of the stator.
The utility model provides an outdoor brushless excitation synchronous machine, still includes the protection casing, and protection casing quantity is no less than three, installs respectively between front end bearing and end cover, rear end bearing and end cover and rear end bearing and exciter.
The stator comprises a waterproof machine base, an iron core and a winding; the waterproof engine base is fixedly arranged on the underframe through bolts; the waterproof machine base is a closed square structure formed by welding steel plates, and the four wall plates form an air inlet area and an air outlet area along the axial direction; an operation window is arranged at the fixed position of the waterproof machine base and the underframe.
The front end bearing and the rear end bearing adopt sliding bearings with forced oil circulation under pressure, and the spherical bearing bush has an automatic aligning function.
The number of the air coolers is not less than two, and the two air coolers are respectively installed at the top end of the stator.
The number of the wire outlet boxes is not less than two, the two wire outlet boxes are respectively arranged on two sides of an end cover of the exciter end, a plurality of leading-out copper bars and matched current transformers are respectively arranged in the wire outlet boxes, and cable leading-out holes are respectively formed in the bottoms of the wire outlet boxes.
The end cover is formed by welding and processing steel plate groups, an observation window is arranged on the end cover, a fire extinguishing water pipe and a wind shield are arranged on the inner side of the end cover, and a sealing ring is arranged on the outer side of the end cover.
The utility model has the beneficial effects that:
the engine structure, the protection grade, the arrangement type and the like meet the requirements of outdoor operation, the integral protection grade of the unit is not lower than IP55, the unit is suitable for the environments with harsh partial conditions such as explosion prevention, open air and the like, can be integrally moved and installed, and has wider application range.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a front view of the present invention;
FIG. 2 is a left side view of the present invention;
FIG. 3 is a diagram of the operating window architecture of the present invention;
FIG. 4 is a structural view of a temperature measuring outlet box of the present invention;
in the drawings: 1-rotor, 2-front end bearing, 3-end cover, 4-air cooler, 5-stator, 6-rear end bearing, 7-exciter, 8-underframe, 9-outlet box, 10-temperature measuring outlet box, 11-protective cover, 12-waterproof machine base, 13-bolt, 14-waterproof box, 15-operation window and 16-terminal row.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-4, an outdoor brushless excitation synchronous motor comprises a rotor 1, a front end bearing 2, an end cover 3, an air cooler 4, a stator 5, a rear end bearing 6, an exciter 7, a chassis 8, an outlet box 9 and a temperature measuring outlet box 10; the rotor 1, the front end bearing 2, the stator 5, the rear end bearing 6 and the exciter 7 are sequentially connected in sequence; the rotor 1, the front end bearing 2, the stator 5, the rear end bearing 6 and the exciter 7 are respectively mounted on a chassis 8; the two end covers 3 are respectively arranged at two ends of the stator 5, and the front end bearing 2 and the rear end bearing 6 are respectively positioned at two sides of the end covers 3; the air cooler 4 is arranged at the top end of the stator 5; the outlet box 9 and the temperature measuring outlet box 10 are respectively arranged on the outer surface of the stator 5.
The utility model provides an outdoor brushless excitation synchronous machine, still includes protection casing 11, and protection casing 11 quantity is no less than three, installs respectively between front end bearing 2 and end cover 3, rear end bearing 6 and end cover 3 and rear end bearing 6 and exciter 7.
The stator 5 comprises a waterproof machine base 12, an iron core and a winding; the waterproof engine base 12 is fixedly arranged on the underframe 8 through a bolt 13; the waterproof machine base 12 is a closed square structure formed by welding steel plates, and four wall plates form an air inlet area and an air outlet area along the axial direction; an operation window 15 is arranged at the fixed position of the waterproof machine base 12 and the underframe.
The front end bearing 2 and the rear end bearing 6 adopt sliding bearings with forced oil circulation under pressure, and the spherical bearing bush has an automatic aligning function. The bearing is additionally provided with built-in insulation to cut off a shaft current path which is possibly generated when a unit operates in the open air, the insulation is formed by hot pressing of a plurality of layers of adhesive-carrying composite paper by using a special die, and the insulation has excellent mechanical property and insulation property.
The number of the air coolers 4 is not less than two, and the two air coolers 4 are respectively installed at the top end of the stator 5. Meanwhile, the ventilation path is shortened, the wind resistance is reduced, and the air cooling effect is improved.
The number of the outlet boxes 9 is not less than two, the two outlet boxes 9 are respectively arranged on two sides of the end cover 3 of the exciter 7, a plurality of leading-out copper bars and matched current transformers are respectively arranged in the outlet boxes 9, and cable leading-out holes are respectively arranged at the bottoms of the outlet boxes 9.
The end cover 3 is formed by welding and processing steel plate groups, an observation window is arranged on the end cover 3, a fire extinguishing water pipe and a wind shield are arranged on the inner side of the end cover 3, and a sealing ring is arranged on the outer side of the end cover 3.
Performing leakage test on all welding seams of the shell of the waterproof machine base 12 in the stator 5;
a waterproof box 14 is arranged outside the operation window 15, and the waterproof box 14 is welded and fixed on the waterproof base;
the bottom of the temperature measuring outlet box 10 is provided with a sealing joint, and a temperature measuring cable is led out from the terminal block 16 through the sealing joint at the bottom;
oil baffle plates are arranged at two ends of spherical bearing bushes in the front end bearing 2 and the rear end bearing 6 and on bearing covers;
the joint of the air covers at two sides of sports to be cooled in the air cooler 4 is sealed by adopting a sealing strip, and the outer surface of the air cooler is coated with a sealing glue after assembly, so that the pressure resistance test standard of the air cooler is improved in order to meet the long-term stable operation of a unit, and a water receiving disc and a water leakage detection device are arranged at the bottom of the air cooler 4;
a sealing joint is arranged at a cable outlet hole at the bottom end of the outlet box 9 and used for connecting and sealing a stator outlet cable;
the protective cover 11 adopts a horizontal split structure, and two ends of the protective cover are respectively combined and sealed with the bearing and the end cover 3 by adopting flanges, so that foreign matters, water and the like are prevented from entering the inside of the generator.
And the exciter 7, the stator 5, the excitation power line and the measuring line are provided with protective covers and sealing joints.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (7)
1. An outdoor brushless excitation synchronous motor is characterized by comprising a rotor (1), a front end bearing (2), an end cover (3), an air cooler (4), a stator (5), a rear end bearing (6), an exciter (7), a chassis (8), a wire outlet box (9) and a temperature measurement wire outlet box (10); the rotor (1), the front end bearing (2), the stator (5), the rear end bearing (6) and the exciter (7) are sequentially connected in sequence; the rotor (1), the front end bearing (2), the stator (5), the rear end bearing (6) and the exciter (7) are respectively mounted on a chassis (8); the two end covers (3) are respectively arranged at two ends of the stator (5), and the front end bearing (2) and the rear end bearing (6) are respectively positioned at two sides of the end covers (3); the air cooler (4) is arranged at the top end of the stator (5); the outlet box (9) and the temperature measuring outlet box (10) are respectively arranged on the outer surface of the stator (5).
2. An outdoor brushless excitation synchronous machine according to claim 1, further comprising at least three shields (11), the number of the shields (11) being respectively mounted between the front end bearing (2) and the end cover (3), between the rear end bearing (6) and the end cover (3), and between the rear end bearing (6) and the exciter (7).
3. An outdoor brushless excitation synchronous machine according to claim 1, characterized in that the stator (5) comprises a waterproof housing (12), an iron core and windings; the waterproof machine base (12) is fixedly arranged on the underframe (8) through a bolt (13); the waterproof machine base (12) is a closed square structure formed by welding steel plates, and four wall plates form an air inlet area and an air outlet area along the axial direction; an operation window (15) is arranged at the fixed position of the waterproof machine base (12) and the underframe.
4. An outdoor brushless excitation synchronous machine according to claim 1, characterized in that the front end bearing (2) and the rear end bearing (6) are spherical bearing bushes with self-aligning function, which are sliding bearings with forced oil circulation under pressure.
5. An outdoor brushless excitation synchronous machine according to claim 1, wherein the number of the air coolers (4) is not less than two, and the two air coolers (4) are respectively installed at the top end of the stator (5).
6. An outdoor brushless excitation synchronous machine according to claim 1, wherein the number of the outlet boxes (9) is not less than two, the two outlet boxes (9) are respectively arranged at two sides of the end cover (3) of the exciter (7), a plurality of outlet copper bars and matched current transformers are respectively arranged in the outlet boxes (9), and cable outlet holes are respectively arranged at the bottoms of the outlet boxes (9).
7. An outdoor brushless excitation synchronous motor according to claim 1, wherein the end cover (3) is formed by welding steel plate groups, an observation window is arranged on the end cover (3), a fire extinguishing water pipe and a wind shield are arranged on the inner side of the end cover (3), and a sealing ring is arranged on the outer side of the end cover (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122832403.0U CN216252434U (en) | 2021-11-18 | 2021-11-18 | Outdoor brushless excitation synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122832403.0U CN216252434U (en) | 2021-11-18 | 2021-11-18 | Outdoor brushless excitation synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216252434U true CN216252434U (en) | 2022-04-08 |
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ID=80945581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122832403.0U Active CN216252434U (en) | 2021-11-18 | 2021-11-18 | Outdoor brushless excitation synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216252434U (en) |
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2021
- 2021-11-18 CN CN202122832403.0U patent/CN216252434U/en active Active
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