Generator motor rotor magnetic pole structure

Abstract

The utility model relates to a generator motor rotor magnetic pole structure. The utility model is suitable for the technical field of generator motors. The technical problem to be solved by the application is to provide a generator motor rotor magnetic pole structure. According to the technical scheme, the generator motor rotor magnetic pole structure is characterized in that the generator motor rotor magnetic pole structure comprises a magnetic pole iron core, two sides of a pole body of the magnetic pole iron core are parallel, and a magnetic pole coil is arranged around the periphery of the magnetic pole iron core; the outer diameter supporting structure is arranged at the outer diameter end of the magnetic pole iron core in the radial direction, and the included angle between the outer diameter supporting structure and a pole body of the magnetic pole iron core is smaller than 90 degrees; and the inner diameter supporting structure is arranged at the inner diameter end of the magnetic pole iron core in the radial direction, and the inner diameter supporting structure is used for providing radial supporting for the magnetic pole coil.

Description

Technical Field

[0001] The utility model relates to the technical field of generator motors, in particular to a rotor magnetic pole structure of a generator motor. Background Art

[0002] Generator motors are the core equipment of pumped storage power stations. Their rotors have the characteristics of high speed, bidirectional rotation, and large centrifugal force. At present, some pumped storage power stations use the same rectangular structure magnetic poles as vertical turbine generators, and there have been many accidents in which the magnetic pole coils are deformed or even thrown out. In recent years, tower-shaped magnetic poles have gradually been promoted. However, since the shape of each turn of the tower-shaped magnetic pole coil is different, it brings difficulties to the production and lamination of the coils. The insulating support blocks in the inner diameter direction are also prone to displacement or falling off due to the thermal expansion and contraction of the coils. Utility Model Content

[0003] The technical problem to be solved by the utility model is: to provide a rotor pole structure of a generator motor in view of the above-mentioned existing problems.

[0004] The technical solution adopted by the utility model is: a rotor pole structure of a generator motor, characterized in that it includes:

[0005] The pole core has two parallel pole bodies and is surrounded by a pole coil;

[0006] An outer diameter support structure is provided at the outer diameter end of the magnetic pole core in the radial direction, and an angle between the outer diameter support structure and the pole body of the magnetic pole core is less than 90°;

[0007] The inner diameter support structure is arranged at the inner diameter end of the magnetic pole core along the radial direction, and the inner diameter support structure is used to provide radial support for the magnetic pole coil.

[0008] Through the above technical means, the outer diameter support structure is used to provide centripetal support force for the pole core, and the inner diameter support structure is used to provide radial support for the pole coil outside the pole core. The outer diameter support structure and the inner diameter support structure cooperate to reduce the probability of the pole coil being thrown out or deformed. At the same time, since the pole core has parallel pole bodies on both sides, the pole coils surrounding it have the same shape, which reduces the difficulty of coil production and improves assembly efficiency.

[0009] In some embodiments, an elastic buffer structure is further provided between the magnetic pole coil and the magnetic pole core, and the elastic buffer structure is used to buffer the swing impact of the magnetic pole coil during the start-up and shutdown process of the unit.

[0010] In some embodiments, the elastic buffer structure includes an elastic pad, and the elastic pad is arranged between the outer wall of the pole core and the inner wall of the pole coil.

[0011] In some embodiments, the outer diameter support structure includes an outer diameter support plate and a first insulating support plate. The outer diameter support plate is installed at the radial outer diameter end of the pole core. The first insulating support plate is installed between the outer diameter support plate and the pole coil.

[0012] In some embodiments, the inner diameter support structure includes an inner diameter support plate and a second insulating support plate. The inner diameter support plate is installed at the inner diameter end of the magnetic pole core along the radial direction. The second insulating support plate is installed between the inner diameter support plate and the magnetic pole coil.

[0013] In some embodiments, the second insulating support plate is wedge-shaped and has a surface friction coefficient of not less than 0.2.

[0014] In some embodiments, the pole coil is mainly formed by stacking a number of identical coils, and the angle a between the pole coil and the tangent direction of the pole core is 4° to 6°.

[0015] The beneficial effects of the utility model are:

[0016] 1. The outer diameter support structure cooperates with the inner diameter support structure to fix and support the pole coil, reducing the probability of the pole coil being thrown out or deformed during rotation. At the same time, the friction of the support surface at the inner diameter end of the pole coil is increased, so that the support structure at the inner diameter end of the pole coil will not fall off.

[0017] 2. The two sides of the pole body of the magnetic pole core are parallel, and each turn of the coil surrounding the pole body is parallel and identical, which is easier to produce and assemble than the tower-shaped magnetic pole. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of this application.

[0019] Description of reference numerals:

[0020] 1. Magnetic pole core; 2. Inner diameter support plate; 3. Second insulating support plate; 4. Magnetic pole coil; 5. Elastic pad; 6. First insulating support plate; 7. Outer diameter support plate.

[0021] This specification includes references to "one embodiment" or "an embodiment." The appearance of the phrase "in one embodiment" or "in an embodiment" does not necessarily refer to the same embodiment. The particular features, structures or characteristics may be combined in any suitable manner consistent with the present disclosure.

[0022] The term "comprising" is open ended. As used in the appended claims, the term does not exclude additional structures or steps.

[0023] "First," "second," etc. As used herein, these terms act as labels for the nouns that precede them and do not imply any type of ordering (e.g., spatial, temporal, logical, etc.). DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the technical solution of the present utility model is further described below in conjunction with specific embodiments.

[0025] Combination Figure 1 As shown, this embodiment is a rotor pole structure of a generator motor, including a pole core 1, an outer diameter support structure, an inner diameter support structure, and an elastic buffer structure. The pole body of the pole core 1 is parallel on both sides, and a pole coil 4 is arranged around the pole body. The pole coil 4 is mainly composed of a plurality of identical coils stacked. An elastic buffer structure is installed between the outer wall of the pole body of the pole core 1 and the inner wall of the pole coil 4. The elastic buffer structure is used to buffer the swing impact of the pole coil 4 during the start and stop of the unit. The outer diameter end of the pole core 1 along the radial direction is provided with an outer diameter support structure, and the angle between the outer diameter support structure and the pole body of the pole core 1 is less than 90°. The outer diameter support structure is used to provide centripetal support force to the pole coil 4. The inner diameter end of the pole core 1 along the radial direction is provided with an inner diameter support structure, and the inner diameter support structure is used to provide radial support to the pole coil 4.

[0026] Furthermore, the angle a between the magnetic pole coil 4 and the magnetic pole core 1 in the tangential direction is 4° to 6°.

[0027] In some embodiments, the elastic buffer structure includes an elastic pad 5 , which is disposed between the outer wall of the pole core 1 and the inner wall of the pole coil 4 .

[0028] In some embodiments, the outer diameter support structure includes an outer diameter support plate 7 and a first insulating support plate 6. The outer diameter support plate 7 is installed on the radial outer diameter end of the pole core 1. The first insulating support plate 6 is installed between the outer diameter support plate 7 and the pole coil 4. The first insulating support plate 6 is in contact with the radial outer diameter end of the pole coil 4.

[0029] In some embodiments, the inner diameter support structure includes an inner diameter support plate 2 and a second insulating support plate 3. The inner diameter support plate 2 is installed on the radial inner diameter end of the pole core 1. The second insulating support plate 3 is installed between the inner diameter support plate 2 and the pole coil 4. The second insulating support plate 3 is in contact with the radial inner diameter end of the pole coil 4.

[0030] Furthermore, the second insulating support plate 3 is wedge-shaped, with its thicker end close to the outer wall of the pole core 1, and its surface friction coefficient is not less than 0.2.

[0031] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A rotor pole structure of a generator motor, characterized in that: include: A magnetic pole core (1) has two parallel pole bodies and a magnetic pole coil (4) surrounding the circumference; An outer diameter support structure is provided at the outer diameter end of the magnetic pole core (1) in the radial direction, and the angle between the outer diameter support structure and the pole body of the magnetic pole core (1) is less than 90°; An inner diameter support structure is arranged at the inner diameter end of the magnetic pole core (1) in the radial direction, and the inner diameter support structure is used to provide radial support for the magnetic pole coil (4).

2. A rotor pole structure of a generator motor according to claim 1, characterized in that: An elastic buffer structure is also provided between the magnetic pole coil (4) and the magnetic pole core (1), and the elastic buffer structure is used to buffer the swing impact of the magnetic pole coil (4) during the start-up and shutdown process of the unit.

3. A rotor pole structure of a generator motor according to claim 2, characterized in that: The elastic buffer structure comprises an elastic pad (5), and the elastic pad (5) is arranged between the outer wall of the magnetic pole core (1) and the inner wall of the magnetic pole coil (4).

4. The rotor pole structure of a generator motor according to claim 1, characterized in that: The outer diameter support structure comprises an outer diameter support plate (7) and a first insulating support plate (6); the outer diameter support plate (7) is mounted on the outer diameter end of the magnetic pole core (1) in the radial direction; and the first insulating support plate (6) is mounted between the outer diameter support plate (7) and the magnetic pole coil (4).

5. The rotor magnetic pole structure of a generator motor according to claim 1, characterized in that: The inner diameter support structure comprises an inner diameter support plate (2) and a second insulating support plate (3); the inner diameter support plate (2) is mounted on the inner diameter end of the magnetic pole core (1) along the radial direction; and the second insulating support plate (3) is mounted between the inner diameter support plate (2) and the magnetic pole coil (4).

6. A rotor pole structure for a generator motor according to claim 5, characterized in that: The second insulating support plate (3) is wedge-shaped, and has a surface friction coefficient of not less than 0.

2.

7. A generator motor rotor magnetic pole structure according to any one of claims 1 to 6, characterized in that: The magnetic pole coil (4) is mainly formed by stacking a number of completely identical coils, and the angle a between the magnetic pole coil (4) and the tangent direction of the magnetic pole core (1) is 4° to 6°.

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