CN217522648U

CN217522648U - Permanent magnet motor rotor with magnetic bridge

Info

Publication number: CN217522648U
Application number: CN202221422724.1U
Authority: CN
Inventors: 刘尊云; 朱信礼; 孙普; 袁存林; 刘庆; 朱信贵; 杨金瑞; 陈如涛
Original assignee: Xuzhou Sinan Electromechanical Technology Co ltd
Current assignee: Xuzhou Sinan Electromechanical Technology Co ltd
Priority date: 2022-06-09
Filing date: 2022-06-09
Publication date: 2022-09-30
Anticipated expiration: 2032-06-09

Abstract

The utility model relates to the technical field of mechanical design, and discloses a permanent magnet motor rotor with a magnetic bridge, which comprises a driving shaft, wherein the outer side of the driving shaft is movably connected with a front bearing, the outer side of the driving shaft is movably connected with a rear bearing, the outer side of the driving shaft is provided with a threaded hole, the outer side of the driving shaft is fixedly connected with an inner rotor, one end of the driving shaft is fixedly connected with a fan blade, the periphery of the inner rotor is provided with an outer stator, the wire group of the outer stator generates a changeable magnetic field through energy supply to the outer stator, a permanent magnet of the inner rotor rotates under the influence of the magnetic field so as to drive the driving shaft to work, the heat generated during the work between the inner rotor and the driving shaft can be completely sucked out through the special structure of a connecting seat, and the air flow generated by matching with a heat dissipation hole further removes the internal heat, so that the temperature of the inner rotor is always in a normal state.

Description

Permanent magnet motor rotor with magnetic bridge

Technical Field

The utility model relates to a mechanical design technical field specifically is a permanent-magnet machine rotor with magnetic bridge.

Background

With the coming of global industrialized era and the acceleration of the development process of the industries of various countries, the electric energy is very convenient in the aspects of production, transmission, distribution, use, control, energy conversion and the like. In the modern industrialized society, various natural energy sources generally do not directly drag production machinery, but are converted into electric energy firstly, and then the electric energy is converted into required energy forms (such as mechanical energy, heat energy, sound energy, light energy and the like) for utilization after pilot plant control.

Because the motor works for a long time, the heat of the rotor inside cannot be dissipated all the time, thereby causing the normal operation of the equipment and influencing the work.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a permanent-magnet machine rotor with magnetic bridge possesses the advantage that the heat dissipation is fast, efficient.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a permanent-magnet machine rotor with magnetic bridge, includes the drive shaft, the outside swing joint of drive shaft has the front bearing, the outside swing joint of drive shaft has the rear bearing, the screw thread mouth has been seted up in the outside of drive shaft, the outside fixedly connected with inner rotor of drive shaft, the one end fixedly connected with flabellum of drive shaft, the periphery of inner rotor is provided with outer stator.

Preferably, the inner rotor includes fixed connection at the epaxial connecting seat of drive, the louvre has been seted up on the surface of connecting seat, the outside fixed connection of connecting seat is on the inner ring, the outside fixedly connected with connecting block of inner ring, the outside fixedly connected with permanent magnet of connecting block, the outside fixedly connected with outer loop of permanent magnet, the surface of outer loop is provided with the rotor conducting bar, and through seting up the louvre on the surface of connecting seat, the effectual inside of rotor including dispels the heat.

Preferably, the outer stator includes a stator core disposed outside the inner rotor, and a wire group is disposed outside the stator core.

Preferably, the connecting seat is formed by a disc and a square bracket, the whole structure is in a cross shape, the heat dissipation holes are formed in the surface of the square bracket of the connecting seat, the number of the heat dissipation holes is three, the distance between every two heat dissipation holes is equal to the diameter of the heat dissipation holes, the connecting seat is arranged in a ninety-degree sequence, the distance between every two connecting seats cannot be larger than the thickness of the connecting seat, the connecting seat is arranged in a ninety-degree sequence, when the inner rotor works, regular airflow can be generated by the rotation of the inner rotor through the arrangement mode, the internal heat can be effectively sucked out, the connecting seat and the driving shaft can be more firmly connected by arranging every two heat dissipation holes in the surface of the square bracket of the connecting seat, and the distance between every two heat dissipation holes is set to be the diameter of the heat dissipation holes, when can rotating including the rotor, produced air current is regular, can effectually with the heat suction of inside, makes the structure of inner rotor more firm moreover, sets the thickness that can not be greater than the connecting seat with the distance between every connecting seat, can avoid because every connecting seat is connected insecure with the drive shaft because the distance is too big and leads to.

Preferably, the fan blades are approximately U-shaped.

Has the advantages that:

1. this permanent-magnet machine rotor with magnetic bridge, through the energy supply to outer stator, thereby make the magnetic field that the group production of outer stator can change, the permanent magnet of inner rotor receives the influence in magnetic field and rotates, thereby it carries out work to drive the drive shaft, through the special construction of connecting seat, can be with the whole suction of the produced heat of during operation between inner rotor and the drive shaft, the produced air current of cooperation louvre is to inside thermal further getting rid of, be favorable to equipment to last normal work always, can not receive the shutdown that the motor generates heat and bring.

2. This permanent-magnet machine rotor with magnetic bridge, through setting the shape with the flabellum into approximate "U" font, because its special construction when the drive shaft rotates, can reduce the resistance that receives it, improve the work efficiency of drive shaft, the rotation through the drive shaft drives the flabellum and rotates, the flabellum carries out work and can absorb and get rid of inner rotor outlying heat, and can be with the heat suction and get rid of that connecting seat and louvre are got rid of, strengthen the radiating effect, be favorable to equipment to last efficient always and work, and can not influence the work efficiency of motor because of its heat dissipation.

Drawings

FIG. 1 is an overall schematic view of an inner rotor of a permanent magnet motor rotor with a magnetic bridge according to the present invention;

FIG. 2 is a schematic side view of a permanent magnet motor rotor with a magnetic bridge according to the present invention;

FIG. 3 is a schematic view of the general structure of the permanent magnet motor rotor with a magnetic bridge according to the present invention;

in the figure: 1. a drive shaft; 2. a front bearing; 3. a threaded opening; 4. an inner rotor; 5. a connecting seat; 6. heat dissipation holes; 7. an inner ring; 8. connecting blocks; 9. a permanent magnet; 10. an outer ring; 11. a rear bearing; 12. a rotor conducting bar; 13. an outer stator; 14. a stator core; 15. a wire set; 16. a fan blade.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example one

Referring to fig. 1-3, a permanent magnet motor rotor with a magnetic bridge includes a driving shaft 1, a front bearing 2 movably connected to an outer side of the driving shaft 1, a rear bearing 11 movably connected to an outer side of the driving shaft 1, a threaded opening 3 formed in the outer side of the driving shaft 1, an inner rotor 4 fixedly connected to the outer side of the driving shaft 1, a fan blade 16 fixedly connected to one end of the driving shaft 1, and an outer stator 13 disposed on an outer periphery of the inner rotor 4.

Inner rotor 4 includes fixed connection connecting seat 5 in drive shaft 1, louvre 6 has been seted up on the surface of connecting seat 5, the outside fixed connection of connecting seat 5 is on inner ring 7, the outside fixedly connected with connecting block 8 of inner ring 7, the outside fixedly connected with permanent magnet 9 of connecting block 8, the outside fixedly connected with outer loop 10 of permanent magnet 9, the surface of outer loop 10 is provided with rotor conducting bar 12, louvre 6 is seted up through the surface at connecting seat 5, the effectual inside of rotor 4 dispels the heat including.

The outer stator 13 includes a stator core 14 disposed outside the inner rotor 4, and a wire group 15 is disposed outside the stator core 14.

The connecting seat 5 is formed by a disc and a square bracket, the whole structure is in a cross shape, the heat dissipation holes 6 are arranged on the surface of the square bracket of the connecting seat 5, the number of the heat dissipation holes 6 is three, the distance between every two heat dissipation holes 6 is equal to the diameter of the heat dissipation holes 6, the arrangement mode of the connecting seat 5 is arranged in sequence at ninety degrees, the distance between every two connecting seats 5 can not be larger than the thickness of the connecting seat 5, the connection between the connecting seat 5 and the driving shaft 1 can be firmer by arranging every two heat dissipation holes 6 on the surface of the square bracket of the connecting seat 5, regular air flow can be generated by the rotation of the inner rotor 4 when the inner rotor 4 works, the internal heat can be effectively sucked out, the connection between the connecting seat 5 and the driving shaft 1 can be firmer by arranging the distance between every two heat dissipation holes 6 as the diameter of the heat dissipation holes 6, when rotor 4 rotates including can, produced air current is regular, can be effectual with the heat suction of inside, makes rotor 4's structure more firm moreover, sets the distance between every connecting seat 5 to the thickness that can not be greater than connecting seat 5, can avoid because every connecting seat 5 is insecure because the connecting seat 5 that leads to apart from too big and drive shaft 1's connection.

The working principle is as follows: through the energy supply to outer stator 13, thereby make outer stator 13's line group 15 produce the magnetic field that can change, the permanent magnet 9 of inner rotor 4 receives the influence in magnetic field and rotates, thereby drive shaft 1 and work, through the special construction of connecting seat 5, can be with the whole aspirations of the produced heat of during operation between inner rotor 4 and the drive shaft 1, the produced air current of cooperation louvre 6 is to the further elimination of inside heat, thereby make the temperature of inner rotor 4 be in normal state always.

Example two

Referring to fig. 1-3, fan blade 16 is substantially U-shaped according to the first embodiment.

The working principle is as follows: through setting the shape of flabellum 16 to approximate "U" font, because its special construction when drive shaft 1 rotates, can reduce the resistance to it receives, improve drive shaft 1's work efficiency, rotate through drive shaft 1's rotation drive flabellum 16 and rotate, flabellum 16 carries out work and can absorb and get rid of the heat of inner rotor 4 outlying, can be with the heat suction and get rid of that connecting seat 5 and louvre 6 are got rid of in addition, strengthen the radiating effect.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a permanent-magnet machine rotor with magnetic bridge, includes drive shaft (1), its characterized in that: the outer side of the driving shaft (1) is movably connected with a front bearing (2), the outer side of the driving shaft (1) is movably connected with a rear bearing (11), the outer side of the driving shaft (1) is provided with a threaded opening (3), the outer side of the driving shaft (1) is fixedly connected with an inner rotor (4), one end of the driving shaft (1) is fixedly connected with a fan blade (16), and the periphery of the inner rotor (4) is provided with an outer stator (13);

inner rotor (4) are including connecting seat (5) of fixed connection on drive shaft (1), louvre (6) have been seted up on the surface of connecting seat (5), the outside fixed connection of connecting seat (5) is on inner ring (7), the outside fixedly connected with connecting block (8) of inner ring (7), the outside fixedly connected with permanent magnet (9) of connecting block (8), the outside fixedly connected with outer ring (10) of permanent magnet (9), the surface of outer ring (10) is provided with rotor conducting bar (12).

2. The permanent magnet motor rotor with the magnetic bridge according to claim 1, characterized in that: the outer stator (13) comprises a stator core (14) arranged on the outer side of the inner rotor (4), and a wire group (15) is arranged on the outer side of the stator core (14).

3. The permanent magnet motor rotor with the magnetic bridge according to claim 1, characterized in that: the connecting seat (5) is formed by a disc and a square support, the overall structure is in a cross shape, and the heat dissipation holes (6) are formed in the surface of the square support of the connecting seat (5).

4. A rotor for a permanent magnet electric machine with a magnetic bridge according to claim 3, characterized in that: the number of the heat dissipation holes (6) is three, and the distance between every two heat dissipation holes (6) is equal to the diameter of each heat dissipation hole (6).

5. A rotor for a permanent magnet electric machine with a magnetic bridge according to claim 3, characterized in that: the arrangement mode of the connecting seats (5) is ninety degrees and is arranged in sequence, and the distance between every two connecting seats (5) cannot be larger than the thickness of the connecting seats (5).

6. The permanent magnet motor rotor with the magnetic bridge according to claim 1, characterized in that: the fan blade (16) is approximately U-shaped.