CN218648641U

CN218648641U - Claw-pole type hybrid excitation generator for vehicle

Info

Publication number: CN218648641U
Application number: CN202223177385.8U
Authority: CN
Inventors: 杨成群; 邓敏; 张宇坤; 张丽; 尹伟
Original assignee: Dongfeng Electric Drive Systems Co Ltd
Current assignee: Dongfeng Electric Drive Systems Co Ltd
Priority date: 2022-11-29
Filing date: 2022-11-29
Publication date: 2023-03-17
Anticipated expiration: 2032-11-29

Abstract

The utility model discloses a mixed excitation generator of automobile-used claw utmost point formula relates to the generator field. The rotor assembly of the generator is a rotor of an excitation claw pole motor and comprises claw poles, excitation coils and a shaft, wherein a plurality of claw poles are arranged around the excitation coils, steel grooves are respectively formed in two sides of each claw pole, a piece of magnetic steel is arranged between the steel grooves of two adjacent claw poles, and one side of the magnetic steel is abutted against the side surface of each claw pole. The utility model discloses a magnet steel fixed mounting is on rotor assembly, and rotor assembly produces radial magnetic field after the circular telegram, can form a magnetic field similar with rotor assembly's magnetic field, and two magnetic fields can reach the effect of stack reinforcing, and the magnetic circuit opposite direction of the excitation magnetic circuit of magnet steel and electric excitation magnetic leakage in claw utmost point side gap, can reduce the magnetic leakage phenomenon in the claw utmost point side gap, through two kinds of beneficial effects above-mentioned, can improve excitation generator's output performance.

Description

Claw-pole type hybrid excitation generator for vehicle

Technical Field

The utility model relates to a generator field, in particular to automobile-used claw utmost point formula hybrid excitation generator.

Background

The excitation motor is a motor which is connected with a power generation device and a three-phase synchronous generator. The excitation is that the device for providing rotor power supply for the generator rotor can be divided into other excitation, parallel excitation, series excitation, complex excitation and the like according to different excitation modes of the direct current motor, and in the rotation process of the direct current motor, the excitation is to control the voltage of the stator to change the magnetic field generated by the stator so as to change the rotation speed of the direct current motor.

However, in the existing field generator technology, a large amount of magnetic flux leakage is caused by gaps existing between the whole rotors, so that the magnetic field for generating electricity is reduced, the conversion of the magnetic field into electric quantity is reduced, the output power of the field generator is low, and the working efficiency is poor.

SUMMERY OF THE UTILITY MODEL

To the defect that exists among the prior art, the utility model provides a technical problem do: the technology of the excitation generator also has the defects that a large amount of magnetic leakage exists due to gaps among the whole rotors, the magnetic field for generating electricity is reduced, the output power of the excitation generator is lower, and the claw-pole type hybrid excitation generator for the vehicle is provided for avoiding the phenomenon that the excitation generator generates a large amount of magnetic leakage in work.

For reaching above purpose, the utility model provides a vehicle claw utmost point formula hybrid excitation generator, including belt pulley, front end housing, bearing, stator assembly, rotor assembly, rear end housing, regulator assembly, rectifier assembly, end cover, belt pulley, front end housing, bearing, stator assembly, rotor assembly, rear end housing, rectifier assembly, regulator assembly and end cover are connected for order, the type of rotor assembly is the rotor of excitation claw utmost point motor, including claw utmost point, excitation coil and axle, be provided with a plurality of claw utmost points around the excitation coil, the steel bay has been opened respectively to claw utmost point both sides, adjacent two install a magnet steel between the steel bay of claw utmost point, just one side of magnet steel with claw utmost point side offsets.

On the basis of the technical scheme, the steel groove is internally provided with a limiting plate, and the limiting plate is made of rubber materials.

On the basis of the technical scheme, the magnetic steel is made of neodymium iron boron, and the size and the shape of the magnetic steel need to be cut into the size and the shape which can be fixed between the claw-pole gap and the limiting plate.

On the basis of the technical scheme, the front end cover and the rear end cover form a motor shell, the stator assembly and the rotor assembly are installed inside the motor shell and fixedly installed with the motor shell, and the rotor assembly is connected with a belt pulley outside the motor shell through a shaft and a bearing.

On the basis of the technical scheme, the front end cover and the rear end cover are combined through a locking structure.

On the basis of the technical scheme, the regulator assembly is installed at the top end of the rear end cover, the rectifier assembly is installed at the top end of the rear end cover, the end cover is installed at the top end of the rear end cover, and the end cover covers the regulator assembly and the rectifier assembly.

Compared with the prior art, the utility model has the advantages of:

the utility model discloses a set up the steel bay that the size is suitable on the claw utmost point of excitation claw utmost point for install the magnet steel between two adjacent claw utmost points, and one side of magnet steel offsets with excitation coil's surface, make magnet steel fixed mounting on the rotor assembly, the rotor assembly produces radial magnetic field after the circular telegram, the magnet steel can form a magnetic field similar with the magnetic field of rotor assembly, two magnetic fields can reach the effect that the stack strengthens; the claw pole magnetic flux in the motor can return to the rotor through the air gap and the stator, so that the magnetic flux leakage phenomenon can occur, the magnetic flux leakage of the magnetic steel in the claw pole side gap is reduced because the magnetic circuit directions of the magnetic excitation circuit and the magnetic circuit direction of the electric excitation in the claw pole side gap are opposite, and the output performance of the excitation generator can be improved through the two beneficial effects.

Drawings

Fig. 1 is an overall exploded view of a claw-pole hybrid excitation generator for a vehicle;

FIG. 2 is an exploded view of a rotor assembly of a claw-pole hybrid excitation generator for a vehicle;

fig. 3 is a schematic circuit diagram of a claw-pole hybrid excitation generator for a vehicle.

In the figure: 1-belt pulley, 2-front end cover, 3-bearing, 4-stator assembly, 5-rotor assembly, 501-claw pole, 502-magnetic steel, 503-magnet coil, 504-shaft, 505-steel groove, 6-rear end cover, 7-rectifier assembly, 8-end cover and 9-regulator assembly.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

The research and development principle of the present invention will be explained first.

In the working test of the excitation generator for many times, the applicant finds that the excitation claw pole electrode is converted into radial magnetic flux through the flange and the claw pole 501, the radial magnetic flux passes through the air gap and the stator and then returns to the rotor, and a large amount of magnetic flux leakage exists in the period, so that the problem of insufficient power output of the motor is caused.

The embodiment of the utility model provides an automobile-used claw utmost point formula hybrid excitation generator, as shown in FIG. 1, including belt pulley 1, front end housing 2, bearing 3, stator assembly 4, rotor assembly 5, rear end housing 6, regulator assembly 9, rectifier assembly 7, end cover 8, belt pulley 1, front end housing 2, bearing 3, stator assembly 4, rotor assembly 5, rear end housing 6, rectifier assembly 7, regulator assembly 9 and end cover 8 are connected for order, as shown in FIG. 2, rotor assembly 5's type is the rotor of excitation claw utmost point motor, including claw utmost point 501, excitation coil 503 and axle 504, be provided with a plurality of claw utmost point 501 around excitation coil 503, claw utmost point 501 both sides are opened respectively has steel groove 505, adjacent two install a magnet steel 502 between claw utmost point 501's the steel groove 505, just one side of magnet steel 502 with claw utmost point 501 side offsets.

Therefore, the utility model discloses a set up the steel groove 505 that the size is suitable on the claw utmost point 501 of excitation claw utmost point 501 for install magnet steel 502 between two adjacent claw utmost points 501, and one side of magnet steel 502 offsets with excitation coil 503's surface, make magnet steel 502 fixed mounting on rotor assembly 5, rotor assembly 5 produces radial magnetic field after the circular telegram, magnet steel 502 can form a magnetic field similar with rotor assembly 5's magnetic field, two magnetic fields can reach the effect that the stack strengthens; the magnetic flux of the claw poles 501 in the motor can return to the rotor through the air gap and the stator, so that the magnetic flux leakage phenomenon can occur, the magnetic flux leakage of the magnetic steel 502 in the claw pole 501 side gap is opposite to the magnetic flux leakage of the electric excitation in the claw pole 501 side gap, the magnetic flux leakage phenomenon in the claw pole 501 side gap can be reduced, and the output performance of the excitation generator can be improved through the two beneficial effects.

Preferably, a limiting plate is arranged in the steel groove 505, and the material of the limiting plate is a rubber material.

The benefits of such a design are: set up the limiting plate that is used for fixed magnet steel 502 in steel channel 505, avoid magnet steel 502 to take place the displacement, to the work of generator production influence, and the limiting plate is rubber materials, has avoided the limiting plate to produce the influence to magnetic field.

Preferably, the magnetic steel 502 is made of neodymium iron boron, and the size and shape of the magnetic steel 502 need to be cut into the size and shape capable of being fixed between the gap of the claw poles 501 and the limiting plate.

The benefits of such a design are: the neodymium iron boron magnet has high magnetic energy product and extremely high coercive force, can absorb 640 times of magnetic energy of the self weight, has high cost performance, good mechanical performance and is easy to cut, the size and the shape of the magnetic steel 502 used in the excitation generator need to be suitable for the size and the shape between a gap and a limiting plate in the rotor assembly 5, the magnetic steel 502 and the claw 501 have magnetic adsorption force, and then the rotor assembly 5 is subjected to paint dipping treatment, so that the magnetic steel can be fixed on the rotor assembly; the neodymium iron boron material meets the requirement of easy cutting, has higher magnetic energy storage capacity, forms a stronger magnetic field and can effectively improve the output performance of the excitation generator.

Preferably, as shown in fig. 1, the front end cover 2 and the rear end cover 6 form a motor casing, the stator assembly 4 and the rotor assembly 5 are installed inside the motor casing, the stator assembly 4 and the motor casing are fixedly installed, and the rotor assembly 5 is connected with the belt pulley 1 outside the motor casing through the shaft 504 and the bearing 3.

The benefits of such a design are: the motor casing can effectively protect the parts of the stator assembly 4 and the rotor assembly 5 and can not obstruct the normal work of the rotor assembly 5.

Preferably, as shown in fig. 1, the front end cap 2 and the rear end cap 6 are combined through a locking structure.

The benefits of such a design are: the structure of generally passing through recess and projection between front end housing 2 and the rear end housing 6 is fixed, but rotor assembly 5's rotation can produce vibrations, produces the influence to the stability of motor casing, consequently installs a hasp structure additional, avoids droing of motor casing.

Preferably, as shown in fig. 1, a regulator assembly 9 is installed at the top end of the rear end cover 6, a rectifier assembly 7 is installed at the top end of the rear end cover 6, an end cover 8 is installed at the top end of the rear end cover 6, and the end cover 8 covers the regulator assembly 9 and the rectifier assembly 7.

The benefits of such a design are: the end shield 8 is effective to protect the components of the regulator assembly 9 and the rectifier assembly 7.

The embodiment of the utility model provides an automobile-used claw utmost point formula hybrid excitation generator, as shown in FIG. 3, the theory of operation as follows:

s1, electrifying a claw-pole type hybrid excitation generator, and regulating output voltage to a specified value (connected with an excitation loop) through a regulator assembly 9;

s2, the rotor assembly 5 generates a radial magnetic field after excitation and electrification, and the magnetic steel 502 arranged on the rotor assembly 5 forms an acquainted magnetic field to further enhance the radial magnetic field;

s3, after the power is switched on, the belt pulley 1 starts to rotate, and the rotor assembly 5 can be driven to rotate together through the shaft 504 and the bearing 3, so that a radial magnetic field of the rotor assembly 5 is converted into a rotating magnetic field;

s4, the stator assembly 4 is installed in the cover shell and fixed, and the stator assembly 4 generates alternating current by rotating the magnetic field;

and S5, finally, the alternating current output by the motor passes through a rectifier assembly 7 and is output to the outside in a direct current mode for supplying power.

The present invention is not limited to the above preferred embodiments, and any person can obtain other products in various forms without departing from the scope of the present invention, but any change in shape or structure is within the scope of protection.

Claims

1. The utility model provides a car claw utmost point formula hybrid excitation generator, includes belt pulley (1), front end housing (2), bearing (3), stator assembly (4), rotor assembly (5), rear end housing (6), regulator assembly (9), rectifier assembly (7), end cover (8), band pulley (1), front end housing (2), bearing (3), stator assembly (4), rotor assembly (5), rear end housing (6), rectifier assembly (7), regulator assembly (9) and end cover (8) are for connecting in order, its characterized in that, the type of rotor assembly (5) is the rotor of excitation claw utmost point motor, including claw utmost point (501), excitation coil (503) and axle (504), be provided with a plurality of claw utmost point (501) around excitation coil (503), claw utmost point (501) both sides are opened respectively steel slot (505), and two adjacent install a magnet steel (502) between the steel slot (505) of claw utmost point (501), just one side of magnet steel (502) with claw utmost point (501) side offsets.

2. The vehicular claw-pole hybrid excitation generator according to claim 1, characterized in that: and a limiting plate is arranged in the steel groove (505), and the material of the limiting plate is rubber.

3. The vehicular claw-pole hybrid excitation generator according to claim 1, characterized in that: the magnetic steel (502) is made of neodymium iron boron.

4. The vehicular claw-pole hybrid excitation generator according to claim 2, wherein: the size and the shape of the magnetic steel (502) need to be cut into the size and the shape which can be fixed between the gap of the claw pole (501) and the limiting plate.

5. The vehicular claw-pole hybrid excitation generator according to claim 1, characterized in that: the front end cover (2) and the rear end cover (6) form a motor shell, and the stator assembly (4) and the rotor assembly (5) are installed inside the motor shell.

6. The vehicular claw-pole hybrid excitation generator according to claim 5, wherein: stator assembly (4) and motor casing fixed mounting, rotor assembly (5) are connected with outer belt pulley (1) of motor casing through axle (504) and bearing (3).

7. The vehicular claw-pole hybrid excitation generator according to claim 5, wherein: the front end cover (2) and the rear end cover (6) are combined through a locking structure.

8. The vehicular claw-pole hybrid excitation generator according to claim 1, characterized in that: regulator assembly (9) are installed on the top of rear end housing (6), rectifier assembly (7) are installed on the top of rear end housing (6), end cover (8) are installed on the top of rear end housing (6), and it covers regulator assembly (9) and rectifier assembly (7).