CN210111817U

CN210111817U - H400 hexapole generator

Info

Publication number: CN210111817U
Application number: CN201921155504.5U
Authority: CN
Inventors: 杨德华; 彭飞飞; 万勇
Original assignee: Fu Fu Polytron Technologies Inc
Current assignee: Fu Fu Polytron Technologies Inc
Priority date: 2019-07-22
Filing date: 2019-07-22
Publication date: 2020-02-21
Anticipated expiration: 2029-07-22

Abstract

The utility model discloses an H400 hexapole generator, which comprises a front end cover, a stator, a rotor, an exciter stator, a rear end cover, a front protective cover, a machine base protective cover and a rear protective cover, wherein the stator comprises a machine base, a stator core and a stator winding, the rotor comprises a rotating shaft, a fan, a winding end part supporting plate, a rotor core, a rotor winding, a rotary rectifying module, a connecting sheet, an insulating support and an exciter rotor, the H400 hexapole generator is of a double-bearing structure and adopts harmonic excitation and self-ventilation cooling, a wind shield is welded at the front end of the machine base along the circumferential direction, the stator winding end part extends out of the stator core, the winding end part supporting plates are symmetrically arranged at the two ends of the rotor winding, the winding end part supporting plates are compression molding parts, a plurality of radial ventilation channels are arranged at the end part of the rotor winding, the insulating support is fixedly arranged on the, the insulating support is made of unsaturated polyester glass fiber reinforced molding compound.

Description

H400 hexapole generator

Technical Field

The utility model relates to a generator technical field especially relates to a six utmost point generators of H400.

Background

In order to improve the competitiveness of motor products in the market, the performance of the motor needs to be improved, the manufacturing cost is reduced, and the design of the structure, the air path and the excitation system of the generator directly influences the cost and the performance of the motor.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a H400 hexapole generator, this generator can provide 50Hz, 400V's three-phase alternating current when rotational speed 1000min/r, and power range 400 ~ 800kW, this generator dynamic behavior is good, starts asynchronous machine's ability reinforce, simple structure, the sexual valence relative altitude, and it is convenient to maintain.

The utility model adopts the following technical scheme: an H400 six-pole generator comprises a front end cover, a stator, a rotor, an exciter stator, a rear end cover, a front protective cover, a base protective cover and a rear protective cover, wherein the stator comprises a base, a stator core and a stator winding, the rotor comprises a rotating shaft, a fan, a winding end supporting plate, a rotor core, a rotor winding, a rotary rectifying module, a connecting sheet, an insulating support and an exciter rotor, the H400 six-pole generator is of a double-bearing structure and adopts harmonic excitation and self-ventilation cooling, a wind shield is welded at the front end of the base along the circumferential direction, the end part of the stator winding extends out of the stator core, the winding end supporting plate is symmetrically arranged at the two ends of the rotor winding, the winding end supporting plate is a compression molding piece, a plurality of radial ventilation channels are arranged at the end part of the rotor winding, the rotary rectifying module is arranged between the rotor winding and the exciter rotor, and, the connecting piece is fixedly arranged on the insulating support, the rotary rectifying module is fixedly arranged on the connecting piece, and the insulating support is made of unsaturated polyester glass fiber reinforced molding compound.

Preferably, the self-ventilation cooling is that cold air enters from the rear end cover and the rear lower part of the machine base, and hot air is discharged from the front end cover.

Preferably, the wind shield is made of a 4mm steel plate and is provided with 8 wind shields, the direction of cooling air can be changed by the wind shield, the cooling air can be blown onto the front end part of the stator winding better, a good heat dissipation effect is achieved, and the length of the stator winding end part extending out of the stator core is 110 mm.

Preferably, the winding end supporting plate is made of unsaturated polyester glass fiber reinforced molding plastic, the number of the rotor windings is 8, a radial air duct at the end is reserved for every two winding layers, and the winding end supporting plate is provided with a radial air duct.

Preferably, the bolt fixed mounting is used on the exciter rotor for the insulating support, the round nut is embedded in the insulating support, the round nut is used for fixedly mounting the connecting sheet, the connecting sheet is made of cast aluminum alloy, the rotary rectifier module is fixedly mounted on the connecting sheet through the bolt, the connecting sheet can conduct electricity and dissipate heat for the rotary rectifier module, and the rotary rectifier module can be maintained or replaced when the machine base protective cover is detached.

Preferably, the exciter stator is fixedly mounted on the rear end cover, the rotating rectifier module is electrically connected with the exciter rotor and the connecting sheet, the rotor winding is electrically connected with the connecting sheet, and the fan is connected with the rotating shaft.

Compared with the prior art, the utility model has the advantages of: 1. the harmonic excitation is adopted, the dynamic performance of the generator is good, and the capability of starting the asynchronous machine is strong; 2. the air path of the base with the wind shield structure is more reasonable, the heat dissipation effect of the generator is good, the shortening of the end part of the stator winding is possible, the shortening of the end part of the stator winding reduces the resistance of the stator, reduces the heating loss of the stator, better saves the copper wire of the stator, and simultaneously the rotating shaft and the base can be correspondingly shortened, so that the cost of each generator can be saved by about 300 yuan, and the cost performance of the generator is high; 3. the rotor winding end supporting plate improves the insulation reliability between the rotor core and the rotor winding support, and the rotor winding end has good heat dissipation effect due to the radial multi-air-channel design, so that the rotor core can be shortened, and the cost of the rotor core is saved; 4. the rotary rectifying module is positioned between the rotor winding and the exciter rotor, so that the length from the rotor winding to the rotary rectifying module is shortened, the cost is low, and the wiring is convenient; the insulating support of the compression molding structure has simple and reliable structure, and the maintenance or replacement of the rotary rectifying module is convenient; the connecting sheet made of cast aluminum alloy has the advantages of good heat dissipation and low cost.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of the generator stator of the present invention.

Fig. 3 is a schematic structural view of the generator rotor of the present invention.

The reference numbers indicate that 1, a front end cover 2, a stator 3, a rotor 4, an exciter stator 5, a rear end cover 6, a front protective cover 7, a machine base protective cover 8, a rear protective cover 9, a wind shield 10, a machine base 11, a stator iron core 12, a stator winding 13, a rotating shaft 14, a fan 15, a winding end support plate 16, a rotor iron core 17, a rotor winding 18, a rotating rectification module 19, a connecting piece 20, an insulating support 21 and an exciter rotor.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention can be more clearly and clearly defined.

In the present embodiment, it should be understood that the terms "middle", "upper", "lower", "top", "right", "left", "above", "back", "middle", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1, 2 and 3, an H400 hexapole generator comprises a front end cover (1), a stator (2), a rotor (3), an exciter stator (4), a rear end cover (5), a front shield (6), a base shield (7) and a rear shield (8), wherein the stator (2) comprises a base (10), a stator core (11) and a stator winding (12), the rotor (3) comprises a rotating shaft (13), a fan (14), a winding end support plate (15), a rotor core (16), a rotor winding (17), a rotary rectifying module (18), a connecting sheet (19), an insulating support (20) and an exciter rotor (21), the H400 hexapole generator is of a double-bearing structure and adopts harmonic excitation and self-ventilation cooling, a wind shield (9) is welded at the front end of the base (10) along the circumferential direction, and the end of the stator winding (12) extends out of the stator core (11), the rotor winding is characterized in that winding end supporting plates (15) are symmetrically arranged at two ends of the rotor winding (17), the winding end supporting plates (15) are compression-molded pieces, a plurality of radial ventilation channels are arranged at the end of the rotor winding (17), the rotary rectifying module (18) is arranged between the rotor winding (17) and the exciter rotor (21), the insulating support (20) is fixedly installed on the exciter rotor (21), the connecting plate (19) is fixedly installed on the insulating support (20), the rotary rectifying module (18) is fixedly installed on the connecting plate (19), and the insulating support (20) is made of unsaturated polyester glass fiber reinforced molding plastics.

Preferably, the self-ventilation cooling is that cold air enters from the rear end cover (5) and the rear lower part of the machine base (10), and hot air is discharged from the front end cover (1).

Preferably, the wind shield (9) is made of a 4mm steel plate, 8 wind shields (9) are arranged, the direction of cooling air can be changed by the wind shield (9), the cooling air can be blown onto the front end portion of the stator winding (12) better, a good heat dissipation effect is achieved, and the length of the end portion of the stator winding (12) extending out of the stator iron core (11) is 110 mm.

Preferably, the winding end support plate (15) is made of unsaturated polyester glass fiber reinforced molding plastic, the number of the rotor windings (17) is 8, an end radial air duct is reserved for each two layers, and a radial air duct is arranged on the winding end support plate (15).

Preferably, the insulating support (20) is fixedly installed on the exciter rotor (21) through bolts, round nuts are embedded in the insulating support (20) and used for fixedly installing the connecting pieces (19), the connecting pieces (19) are made of cast aluminum alloy, the rotary rectifier modules (18) are fixedly installed on the connecting pieces (19) through the bolts, the connecting pieces (19) can conduct electricity and dissipate heat for the rotary rectifier modules, and the rotary rectifier modules (18) can be maintained or replaced when the base protective covers (7) are detached.

Preferably, the exciter stator (4) is fixedly mounted on the rear end cover (5), the rotating rectifier module (18) is electrically connected with the exciter rotor (21) and the connecting sheet (19), the rotor winding (17) is electrically connected with the connecting sheet (19), and the fan (14) is connected with the rotating shaft (13).

Without being limited thereto, any changes or substitutions which are not thought of through creative efforts should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. An H400 six-pole generator comprises a front end cover (1), a stator (2), a rotor (3), an exciter stator (4), a rear end cover (5), a front protective cover (6), an engine base protective cover (7) and a rear protective cover (8), wherein the stator (2) comprises an engine base (10), a stator core (11) and a stator winding (12), the rotor (3) comprises a rotating shaft (13), a fan (14), a winding end supporting plate (15), a rotor core (16), a rotor winding (17), a rotary rectifying module (18), a connecting sheet (19), an insulating support (20) and an exciter rotor (21), and is characterized in that the H400 six-pole generator is of a double-bearing structure, adopts harmonic excitation and self-ventilation cooling, a wind shield (9) is welded at the front end of the engine base (10) along the circumferential direction, and the end of the stator winding (12) extends out of the stator core (11), the rotor winding is characterized in that winding end supporting plates (15) are symmetrically arranged at two ends of the rotor winding (17), the winding end supporting plates (15) are compression-molded pieces, a plurality of radial ventilation channels are arranged at the end of the rotor winding (17), the rotary rectifying module (18) is arranged between the rotor winding (17) and the exciter rotor (21), the insulating support (20) is fixedly installed on the exciter rotor (21), the connecting plate (19) is fixedly installed on the insulating support (20), the rotary rectifying module (18) is fixedly installed on the connecting plate (19), and the insulating support (20) is made of unsaturated polyester glass fiber reinforced molding plastics.

2. The H400 hexapole generator of claim 1, wherein the self-ventilation cooling is that cold air enters from the rear end cover (5) and the rear lower part of the machine base (10), and hot air is discharged from the front end cover (1).

3. The H400 hexapole generator according to claim 1, wherein the wind shield (9) is made of 4mm steel plate, 8 wind shields (9) are provided, the wind shield (9) can change the direction of cooling wind, so that the cooling wind blows on the front end part of the stator winding (12) to achieve the heat dissipation effect, and the length of the end part of the stator winding (12) extending out of the stator core (11) is 110 mm.

4. The H400 hexapole generator of claim 1, wherein the winding end support plate (15) is made of unsaturated polyester glass fiber reinforced molding compound, the rotor winding (17) has 8 layers, each two layers are wound to leave an end radial air duct, and the winding end support plate (15) is provided with a radial air duct.

5. The H400 hexapole generator of claim 1, characterized in that the insulating bracket (20) is fixedly mounted on the exciter rotor (21) by bolts, the insulating bracket (20) is embedded with round nuts for fixedly mounting the connecting pieces (19), the connecting pieces (19) are made of cast aluminum alloy, and the rotating rectifying module (18) is fixedly mounted on the connecting pieces (19) by bolts.

6. The H400 hexapole generator of claim 1 wherein the exciter stator (4) is fixedly mounted on the rear end cover (5), the rotating rectifier module (18) is electrically connected to both the exciter rotor (21) and the connecting plate (19), the rotor winding (17) is electrically connected to the connecting plate (19), and the fan (14) is connected to the shaft (13).