CN210380428U

CN210380428U - Novel permanent magnet synchronous motor

Info

Publication number: CN210380428U
Application number: CN201921711748.7U
Authority: CN
Inventors: 胡红梅
Original assignee: Jiangsu Jianchi Electric Machinery Co Ltd
Current assignee: Jiangsu Jianchi Electric Machinery Co Ltd
Priority date: 2019-10-14
Filing date: 2019-10-14
Publication date: 2020-04-21
Anticipated expiration: 2029-10-14

Abstract

The utility model relates to the technical field of motors, and discloses a novel permanent magnet synchronous motor, which comprises a shell, wherein a rotor assembly, a claw pole and a coil framework for installing the claw pole are arranged in the shell, and an enameled wire is wound on the coil framework; the rotor assembly comprises a rotating shaft, a rotor sleeve and rotor magnetic steel sleeved outside the rotor sleeve; the rotating shaft comprises a rotor connecting part and a gear connecting part, and in order to enable the rotor assembly to synchronously rotate as a whole, when the rotor assembly is manufactured, the rotor sleeve is made of a plastic material and is fixed with the rotor connecting part and the rotor magnetic steel through injection molding, so that the installation procedures are reduced, and the cost is reduced; the one end of casing is open structure, and the one end of keeping away from open structure is equipped with the bearing frame of installation bearing, and the pivot passes through in the bearing frame for can directly produce wearing and tearing, increase of service life, noise reduction simultaneously with the casing when rotating.

Description

Novel permanent magnet synchronous motor

Technical Field

The utility model relates to the technical field of electric machines, concretely relates to novel permanent magnet synchronous motor.

Background

The permanent magnet synchronous motor is one kind of synchronous motor, and permanent magnetic steel is adopted as a rotor to replace a rotor direct current winding set. In recent years, the permanent magnet synchronous motor has the advantages of small volume, light weight, high efficiency, energy conservation, simple structure and the like, and more attracts attention of people; however, the bottom of the rotor assembly of the existing permanent magnet synchronous motor is seriously abraded with the shell, the service life is short, and the noise between the output shaft and the connecting part is relatively large.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem provide a low noise, simple structure, long service life's PMSM.

The utility model provides a technical scheme that its technical problem adopted is: a novel permanent magnet synchronous motor comprises a shell, wherein a rotor assembly, claw poles and a coil framework for installing the claw poles are arranged in the shell, and enameled wires are wound on the coil framework; one end of the shell is of an open structure, a bearing seat for placing a bearing is arranged at one end far away from the open structure, and the rotor assembly is arranged in the bearing seat through the bearing.

Further, the method comprises the following steps: and the outer side surface of the claw pole is respectively provided with a positioning bulge and a concave hole.

Further, the method comprises the following steps: and a wire hole through which a power supply wire penetrates is formed in the side surface of the coil framework.

Further, the method comprises the following steps: the rotor assembly comprises a rotating shaft, a rotor sleeve and rotor magnetic steel sleeved outside the rotor sleeve; the rotating shaft comprises a rotor connecting part and a gear connecting part, and the rotor connecting part is connected with a rotor sleeve.

Further, the method comprises the following steps: the gear connecting part is a helical gear connecting part.

Further, the method comprises the following steps: and bearing mounting areas are arranged at two ends of the rotor sleeve.

Further, the method comprises the following steps: the shell is connected with a reduction gearbox, a gear reduction output mechanism is arranged in the reduction gearbox, and the gear connecting part is connected with the gear reduction output mechanism.

The utility model has the advantages that: the bearing seat is arranged on the shell, and the rotating shaft is arranged in the bearing seat through the ball bearing, so that the noise is reduced, the abrasion is reduced, and the service life is prolonged; the rotating shaft is divided into the rotor connecting part and the gear connecting part, and the gear connecting part is a helical gear, so that the noise generated when the gear connecting part and the gear speed reduction output mechanism work is further reduced. The rotor sleeve is fixedly connected with the rotating shaft and the rotor magnetic steel through injection molding, so that the installation procedures are reduced, and the cost is reduced.

Drawings

FIG. 1 is a schematic cut-away view of the present invention;

FIG. 2 is a schematic sectional view of the reduction box of the present invention;

FIG. 3 is a schematic view of the installation of the claw pole, the coil frame and the enameled wire of the present invention;

labeled as: 10. a housing; 11. a bearing seat; 20. a bearing; 31. a claw pole; 311. positioning the projection; 312. concave holes; 32. a coil bobbin; 33. enamelled wires; 411. a rotor connecting portion; 412. a gear connecting portion; 42. a rotor sleeve; 43. rotor magnetic steel; 60. a reduction gearbox.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

As shown in fig. 1 to fig. 3, the novel permanent magnet synchronous motor of the present embodiment includes a housing 10, a rotor assembly, a claw pole 31, and a bobbin 32 for mounting the claw pole 31 are disposed in the housing 10, and an enamel wire 33 is wound on the bobbin 32; one end of the housing 10 is an open structure, a bearing seat 11 for placing a bearing 20 is arranged at one end far away from the open structure, and the rotor assembly is placed in the bearing seat 11 through the bearing 20. The bearing 20 in the utility model is a ball bearing, the rotor assembly is arranged in the bearing seat 11 of the shell 10 through the ball bearing, the noise of the rotor assembly in the rotating process is reduced, the bearing 20 is arranged between the rotor assembly and the bearing seat 11, the bearing seat 11 is not abraded, the service life is prolonged, and the bearing seat 11 and the shell 10 are of an integrated structure, and the structure is firm; the bearing housing 11 may be a separate member, a hole of the bearing housing 11 is formed in the bottom of the housing 10, and the bearing housing 11 is fixed to the housing 10 by caulking. Two claw poles 31 are correspondingly arranged in the embodiment to jointly form a magnetic circuit, ratchets on each claw pole 31 are distributed in a staggered manner, the ratchets on the claw poles 31 are fixed with a coil framework 32 through inward buckles, meanwhile, four positioning blocks are arranged on two side faces of the coil framework 32 at intervals, and each positioning block is just clamped between two connected ratchets when the claw poles 31 are installed; as shown in fig. 1 and 3, in order to prevent the upper and lower magnetic circuits from being deviated when the rotor assembly rotates, the end surface of each claw pole 31 is respectively provided with a positioning protrusion 311 and a recessed hole 312, and when the end surfaces of the two claw poles 31 are contacted, the positioning protrusion 311 of one is placed in the recessed hole 312 of the other for positioning; the side surface of the coil framework is provided with a wire hole through which a power supply wire penetrates, the section of the coil framework 32 is in a shape of a v-21274, an enameled wire 33 is wound in a recess of the v-21274, and a wire head can penetrate through the wire hole to be connected with a power supply.

On the basis, as shown in fig. 1 and fig. 2, the rotor assembly includes a rotating shaft, a rotor sleeve 42, and a rotor magnetic steel 43 sleeved outside the rotor sleeve 42; the rotation shaft includes a rotor connecting portion 411 and a gear connecting portion 412. In order to enable the rotor assembly to rotate synchronously as a whole, when the rotor assembly is manufactured, the rotor sleeve 42 is made of plastic and is fixed with the rotor connecting part 411 and the rotor magnetic steel 43 through injection molding; bearing mounting areas are also provided at both ends of the rotor sleeve 42, and spacers are also provided between the rotor sleeve 42 and the ball bearings to reduce wear on the rotor sleeve 42.

On the basis, as shown in fig. 1, the casing 10 is connected with a reduction box 60, a gear reduction output mechanism is arranged in the reduction box 60, and the gear connecting part 412 is connected with the gear reduction output mechanism. In order to further reduce the noise of the synchronous motor, the gear connecting portion 412 of the rotating shaft is a helical gear connecting portion 412. The shell 10 fixes the reduction gearbox through a clamp spring.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A novel permanent magnet synchronous motor is characterized in that: the claw pole type motor comprises a shell, wherein a rotor assembly, a claw pole and a coil framework for installing the claw pole are arranged in the shell, and an enameled wire is wound on the coil framework;

one end of the shell is of an open structure, a bearing seat for placing a bearing is arranged at one end far away from the open structure, and the rotor assembly is arranged in the bearing seat through the bearing.

2. The new permanent magnet synchronous machine of claim 1, wherein: and the outer side surface of the claw pole is respectively provided with a positioning bulge and a concave hole.

3. The new permanent magnet synchronous machine of claim 1, wherein: and a wire hole through which a power supply wire penetrates is formed in the side surface of the coil framework.

4. The new permanent magnet synchronous machine of claim 1, wherein: the rotor assembly comprises a rotating shaft, a rotor sleeve and rotor magnetic steel sleeved outside the rotor sleeve; the rotating shaft comprises a rotor connecting part and a gear connecting part, and the rotor connecting part is connected with a rotor sleeve.

5. The new permanent magnet synchronous machine of claim 4, wherein: the gear connecting part is a helical gear connecting part.

6. The new permanent magnet synchronous machine of claim 4, wherein: and bearing mounting areas are arranged at two ends of the rotor sleeve.

7. The new permanent magnet synchronous machine of claim 4, wherein: the shell is connected with a reduction gearbox, a gear reduction output mechanism is arranged in the reduction gearbox, and the gear connecting part is connected with the gear reduction output mechanism.