CN220359007U

CN220359007U - Magnetic brushless swing motor structure

Info

Publication number: CN220359007U
Application number: CN202321808864.7U
Authority: CN
Inventors: 黄浩静; 王欣欣
Original assignee: Jinhua Cimeng Intellectual Property Service Co ltd; Zhejiang Dongyang Dongci Chengji Electronics Co Ltd
Current assignee: Jinhua Cimeng Intellectual Property Service Co ltd; Zhejiang Dongyang Dongci Chengji Electronics Co Ltd
Priority date: 2023-07-10
Filing date: 2023-07-10
Publication date: 2024-01-16
Anticipated expiration: 2033-07-10

Abstract

The utility model discloses a magnetic brushless swinging motor structure which belongs to the technical field of motors, and comprises a machine shell, wherein one end of the machine shell is connected with an end cover, a rotating shaft is arranged in the machine shell, one end of the rotating shaft is connected with a torsion spring, the other end of the torsion spring is connected with the end cover, the other end of the rotating shaft is connected with an output shaft, a rotor core is connected on the circumference of the rotating shaft, a stator core is connected on the inner wall of the machine shell, two corresponding rotor core bosses are arranged on the circumference of the rotor core, two stator core bosses corresponding to the rotor core bosses are connected on the inner wall of the stator core, and a coil is wound on the stator core bosses. The utility model can realize reciprocating rotary motion in a certain angle without using an electric brush as an armature reversing mechanism and a permanent magnet, has stronger carrying capacity, and has the characteristics of low material and manufacturing cost, high yield and good effect.

Description

Magnetic brushless swing motor structure

Technical Field

The utility model belongs to the technical field of motors, and particularly relates to a magnetic brushless swing motor structure.

Background

In recent years, as the application of the motor in consumer electronics is expanding, the requirements thereof are becoming more specialized, such as a vibration motor providing a tactile sensation, a driving motor providing a reciprocating motion, and the like.

Taking an electric toothbrush as an example, the prior art schemes are mainly divided into the following two types according to the motor mode of application:

1. the linear motor provides linear motion, and then the linear motion is converted into a rotary electric toothbrush with a brush head which rotates in a reciprocating manner through mechanical structures such as a connecting rod, a hinge, a wheel disc and the like;

2. the swinging motor is used for providing swinging motion (reciprocating rotation motion within a certain angle) around the shaft, and the brush head is directly sleeved on the rotating shaft of the motor, so that the brush head swings up and down, namely the swinging type electric toothbrush.

The former has the advantages that the frequency can be made higher so as to have better cleaning effect, but the problems of relatively complex structure and higher cost exist; the latter has the advantages of simple application mode and low application cost.

However, as products become more popular, it is highly desirable to provide motors that are more economical, more manufacturable, less costly, and have similar effects to increase the competitiveness of such products.

Disclosure of Invention

To solve the problems set forth in the background art. The utility model provides a magnetic brushless swing motor structure, which has the characteristics of no need of an electric brush as an armature reversing mechanism, capability of reciprocating and rotating in a certain angle, stronger carrying capacity, low material and manufacturing cost, high yield and good effect.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a brushless swing motor structure is inhaled to magnetism, which comprises a housing, the one end of casing is connected with the end cover, the inside of casing is equipped with the pivot, the one end of pivot is connected with the torsional spring, the other end and the end cover of torsional spring are connected, the other end of pivot is connected with the output shaft, be connected with rotor core on the circumference of pivot, be connected with stator core on the inner wall of casing, be equipped with two corresponding rotor core bosss on the circumference of rotor core, be connected with two stator core bosss corresponding with rotor core boss on the inner wall of stator core, the coiling has the coil on the stator core boss.

In order to reduce eddy current loss and improve motor efficiency on the premise of ensuring higher magnetic permeability, further, the rotor core and the stator core are silicon steel laminated components.

In order to support the output shaft, friction force is reduced, motor efficiency and performance are improved, and further, the output shaft is connected with the shell through a bearing, and the bearing is a ball bearing.

In order to provide restoring force for the reciprocating motion of the motor, further, the torsion spring is of a sheet-shaped structure or a sheet-shaped bent structure.

In order to facilitate the connection of the torsion spring and the rotating shaft and ensure the stability of connection, further, a connecting groove is formed at one end of the rotating shaft connected with the torsion spring.

In order to increase the storage amount of glue and further ensure the bonding strength, through holes are respectively arranged at the two ends of the torsion spring.

In order to be used as a winding support frame of the coil, the coil can be supported and fixed, the coil can be separated from the stator core, the insulation reliability of the coil is guaranteed, and furthermore, a framework is arranged in the stator core, and the coil is wound on the framework.

Compared with the prior art, the utility model has the beneficial effects that:

1. the utility model can realize reciprocating rotary motion in a certain angle without using an electric brush as an armature reversing mechanism and a permanent magnet, has stronger carrying capacity, and has the characteristics of low material and manufacturing cost, high yield and good effect;

2. the rotor core and the stator core are silicon steel laminated components, so that the eddy current loss is reduced and the motor efficiency is improved on the premise of ensuring higher magnetic permeability;

3. the connecting groove is formed in one end, connected with the torsion spring, of the rotating shaft, so that the torsion spring is conveniently connected with the rotating shaft, and the stability of connection is ensured;

4. through holes are respectively arranged at two ends of the torsion spring, and can increase the storage quantity of glue, so that the bonding strength is ensured.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic diagram of an explosion of a structure of the present utility model;

FIG. 2 is a schematic view of a longitudinal cut-away structure of the present utility model;

FIG. 3 is a schematic cross-sectional view of the present utility model;

fig. 4 is a schematic structural view of a stator core according to the present utility model;

fig. 5 is a schematic structural view of a rotor core according to the present utility model;

FIG. 6 is a schematic view of a spindle according to the present utility model;

FIG. 7 is a schematic view of the torsion spring of the present utility model;

in the figure: 1. an output shaft; 2. a skeleton; 3. a coil; 4. a rotating shaft; 41. a connecting groove; 5. a torsion spring; 51. a through hole; 6. an end cap; 7. a rotor core; 71. rotor core boss; 8. a stator core; 81. stator core boss; 9. a housing; 10. and (3) a bearing.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-7, the present utility model provides the following technical solutions: the utility model provides a brushless swing motor structure is inhaled to magnetism, including casing 9, casing 9 is by galvanized steel sheet stretch forming, possess characteristics such as high permeability, rust-resistant, reduce the magnetic leakage and improve corrosion resistance, the one end of casing 9 is connected with end cover 6, the inside of casing 9 is equipped with pivot 4, the one end of pivot 4 is connected with torsional spring 5, the other end and the end cover 6 of torsional spring 5 are connected, the other end of pivot 4 is connected with output shaft 1, pivot 4 and output shaft 1 are non-magnetic steel, reduce the magnetic flux in non-working area, be connected with rotor core 7 on the circumference of pivot 4, be connected with stator core 8 on the inner wall of casing 9, be equipped with two corresponding rotor core bosss 71 on the circumference of rotor core 7, be connected with two stator core bosss 81 corresponding with rotor core boss 71 on the inner wall of stator core 8, the coiling has coil 3 on the stator core boss 81, the material of coil 3 is the enamelled copper line.

By adopting the technical scheme, when the coil 3 is electrified, the rotor core 7 is magnetized and influenced by electromagnetic torque, the rotor core boss 71 on the rotor core 7 moves towards the alignment direction of the stator core boss 81 on the stator core 8, and meanwhile, the rotor core 7 is subjected to mechanical torque generated by the torsion spring 5; at this time, if the power is off, the rotor core 7 will eventually reversely move beyond the initial equilibrium position due to the deceleration of the mechanical torque, and a certain angle of reciprocating motion is formed. In the above-described reciprocation, when the movement direction is the initial movement direction (i.e., the rotor core boss 71 moves in a direction approaching the alignment of the stator core boss 81), the coil 3 is supplied with power, so that the reciprocation is increased in energy, the swing angle is increased, and the required swing angle is finally achieved.

The utility model can realize reciprocating rotary motion in a certain angle without using an electric brush as an armature reversing mechanism and a permanent magnet, has stronger carrying capacity, and has the characteristics of low material and manufacturing cost, high yield and good effect.

Specifically, the rotor core 7 and the stator core 8 are silicon steel lamination members.

By adopting the technical scheme, on the premise of ensuring higher magnetic permeability, the eddy current loss is reduced, and the motor efficiency is improved.

Specifically, the output shaft 1 is connected to the housing 9 through a bearing 10, and the bearing 10 is a ball bearing.

Through adopting above-mentioned technical scheme, support output shaft 1 through the ball bearing, reduce frictional force, improve motor efficiency and performance.

Specifically, the torsion spring 5 is a sheet-like structure or a sheet-like bent structure, and the present embodiment is preferably a sheet-like structure.

By adopting the technical scheme, restoring force is provided for the reciprocating motion of the motor.

Example 2

This embodiment differs from embodiment 1 in that: specifically, a connecting groove 41 is provided at the end of the rotation shaft 4 connected with the torsion spring 5.

Through adopting above-mentioned technical scheme, be convenient for torsional spring 5 and pivot 4's connection, guarantee the stability of connection.

Example 3

This embodiment differs from embodiment 1 in that: specifically, through holes 51 are respectively provided at both ends of the torsion spring 5.

By adopting the above technical scheme, the through hole 51 can increase the stock of glue, thereby ensuring the bonding strength.

Example 4

This embodiment differs from embodiment 1 in that: specifically, the stator core 8 is internally provided with a skeleton 2, and the coil 3 is wound on the skeleton 2.

Through adopting above-mentioned technical scheme, skeleton 2 is as the coiling support frame of coil 3, and bearing fixed coil 3 simultaneously can also separate coil 3 and stator core 8, guarantees its insulating reliability.

In summary, the utility model does not need an electric brush as an armature reversing mechanism and does not need a permanent magnet, can realize reciprocating rotary motion in a certain angle, has stronger carrying capacity, and has the characteristics of low material and manufacturing cost, high yield and good effect; according to the utility model, the rotor core 7 and the stator core 8 are silicon steel laminated components, so that on the premise of ensuring higher magnetic permeability, the eddy current loss is reduced, and the motor efficiency is improved; the connecting groove 41 is formed at one end of the rotating shaft 4 connected with the torsion spring 5, so that the torsion spring 5 is conveniently connected with the rotating shaft 4, and the stability of connection is ensured; through holes 51 are respectively formed in two ends of the torsion spring 5, and the through holes 51 can increase the storage quantity of glue, so that the bonding strength is ensured.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a brushless swing motor structure is inhaled to magnetism, includes casing, its characterized in that: one end of the shell is connected with an end cover, a rotating shaft is arranged in the shell, one end of the rotating shaft is connected with a torsion spring, the other end of the torsion spring is connected with the end cover, the other end of the rotating shaft is connected with an output shaft, a rotor core is connected on the circumference of the rotating shaft, a stator core is connected on the inner wall of the shell, two corresponding rotor core bosses are arranged on the circumference of the rotor core, two stator core bosses corresponding to the rotor core bosses are connected on the inner wall of the stator core, and a coil is wound on the stator core bosses.

2. The structure of a brushless oscillating motor of claim 1, wherein: the rotor core and the stator core are all silicon steel lamination components.

3. The structure of a brushless oscillating motor of claim 1, wherein: the output shaft is connected with the casing through a bearing, and the bearing is a ball bearing.

4. The structure of a brushless oscillating motor of claim 1, wherein: the torsion spring is of a sheet structure or a sheet bending structure.

5. The structure of a brushless oscillating motor of claim 1, wherein: and a connecting groove is formed in one end, connected with the torsion spring, of the rotating shaft.

6. The structure of a brushless oscillating motor of claim 1, wherein: through holes are respectively formed in two ends of the torsion spring.

7. The structure of a brushless oscillating motor of claim 1, wherein: the stator core is internally provided with a framework, and the coil is wound on the framework.