CN214281051U

CN214281051U - Claw-pole rotor hybrid stepping motor

Info

Publication number: CN214281051U
Application number: CN202120488009.7U
Authority: CN
Inventors: 张国华; 李雪华; 张建文; 张磊
Original assignee: Shenzhen Hengdrive Electric Co ltd
Current assignee: Shenzhen Hengdrive Motor Co ltd
Priority date: 2021-03-08
Filing date: 2021-03-08
Publication date: 2021-09-24
Anticipated expiration: 2031-03-08

Abstract

A claw-pole rotor hybrid stepper motor comprising a rotor assembly, a stator assembly and a control panel, the rotor assembly comprising: the motor shaft, the first shell, the second shell and the copper part are assembled into a whole, the first shell and the second shell are of claw-pole type structures, the first shell and the second shell are made of magnetic conductive materials, a permanent magnet is arranged between the first shell and the second shell, the first shell, the permanent magnet and the second shell form a claw-pole type rotor, and the motor shaft is fixedly connected with the claw-pole type rotor; the stator assembly includes: the stator assembly is arranged on a support, and a bearing is also arranged on the support; the rotor assembly, the stator assembly and the control plate are assembled into a whole. The motor can achieve low rotating speed, large torque and high efficiency.

Description

Claw-pole rotor hybrid stepping motor

Technical Field

The application relates to the technical field of motors, in particular to a claw-pole rotor hybrid stepping motor.

Background

The existing motor structure is composed of three parts, namely a shaft, a stator and a rotor, wherein a rotor iron core, a winding and the shaft are installed into a whole, and the assembly part is a rotating part; two stator cores are arranged in the shell, a permanent magnet is arranged between the two stator cores, and the assembly part is a fixed part. The motor with the structure has larger rotational inertia, low rotating speed and large torque. Meanwhile, the efficiency of the existing synchronous motor is low due to low magnetic energy utilization rate; the existing brushless direct current motor has high rotating speed and difficult torque lifting within a certain size specification range.

SUMMERY OF THE UTILITY MODEL

The application provides a claw utmost point formula rotor hybrid stepping motor of novel structure makes the motor possible low rotational speed, big moment of torsion, high efficiency.

The application provides a pair of claw utmost point formula rotor mixes step motor, including rotor subassembly, stator module and control panel, its characterized in that:

the rotor assembly includes: the motor shaft, the first shell, the second shell and the copper part are assembled into a whole, the first shell and the second shell are of claw-pole type structures, the first shell and the second shell are made of magnetic conductive materials, a permanent magnet is arranged between the first shell and the second shell, and the first shell, the permanent magnet and the second shell form a claw-pole type rotor;

the stator assembly includes: the stator assembly is arranged on a support, and a bearing is also arranged on the support;

the rotor assembly, the stator assembly and the control panel are assembled into a whole, and the bearing and the motor shaft are fastened through a clamp spring.

In some embodiments, the claw-pole rotor is an outer rotor or an inner rotor.

In some embodiments, the stator assembly is a BLDC structure with a plurality of small teeth formed on the stator teeth.

In some embodiments, the first housing and the second housing have the same number of poles.

In some embodiments, the first housing and the second housing are one or more pairs.

In some embodiments, the permanent magnet is a pair of poles.

According to the embodiment, the first shell, the permanent magnet and the second shell form a claw-pole type rotor, a motor shaft is fixedly connected with the claw-pole type rotor and used as a power output shaft, the stator assembly is of a BLDC structure, and a plurality of small teeth are arranged on stator teeth; compared with a synchronous motor, the motor has the advantages that the magnetic energy utilization rate is high, namely the efficiency is high; compared with a brushless direct current motor, the brushless direct current motor has the advantages of more poles and grooves, large torque, low rotating speed and low cost.

Drawings

FIG. 1 is a side view of an embodiment claw pole outer rotor hybrid stepper motor;

FIG. 2 is a front view of a claw pole outer rotor hybrid stepper motor junction of an embodiment;

FIG. 3 is an exploded view of an embodiment claw pole outer rotor hybrid stepper motor junction;

FIG. 4 is a cross-sectional view of an embodiment claw pole outer rotor hybrid stepper motor structure;

FIG. 5 is a cross-sectional view of a claw pole inner rotor hybrid stepper motor junction of an embodiment;

FIG. 6 is a front view of a claw pole inner rotor hybrid stepper motor junction of an embodiment;

fig. 7 is an exploded view of a claw pole inner rotor hybrid stepper motor junction of an embodiment.

Reference numerals:

19-copper part, 2-first shell, 3-permanent magnet, 4-second shell, 5-stator iron core, 6-bearing, 7-screw, 8-control plate, 9-support, 10-motor shaft, 11-clamp spring, 14-insulator, 19-motor shell (inner rotor), 20-claw pole type rotor and 24-end cover.

Detailed Description

The present application will be described in further detail below with reference to the accompanying drawings by way of specific embodiments. Wherein like elements in different embodiments are numbered with like associated elements. In the following description, numerous details are set forth in order to provide a better understanding of the present application. However, those skilled in the art will readily recognize that some of the features may be omitted or replaced with other elements, materials, methods in different instances. In some instances, certain operations related to the present application have not been shown or described in detail in order to avoid obscuring the core of the present application from excessive description, and it is not necessary for those skilled in the art to describe these operations in detail, so that they may be fully understood from the description in the specification and the general knowledge in the art.

The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings).

The first embodiment is as follows:

referring to fig. 1 to 4, the present application provides a claw-pole rotor hybrid stepping motor including a rotor assembly, a stator assembly, and a control board, the motor being an outer rotor motor whose motor housing (not shown) rotates and whose inner transmission part (claw-pole rotor 20) is fixed without rotation.

The rotor assembly includes: motor shaft 10, first casing 2, second casing 4 and copper spare 1, motor shaft 10, first casing 2 and copper spare 1 three assemble into an organic whole, and first casing 2 and second casing 4 are claw utmost point formula structure, and the material of first casing 2 and second casing 4 is magnetic conduction material, is provided with permanent magnet 3 between first casing 2 and the second casing 4, and first casing 2, permanent magnet 3 and the second casing 4 body have constituted claw utmost point formula rotor 20.

The stator assembly includes: stator core 5 and a winding provided on stator core 5.

The stator assembly is arranged on a support 9, and a bearing 6 and a control panel 8(PCBA) are also arranged on the support 9; a front bearing 6 and a rear bearing 6 are respectively embedded into the support 9, the motor shaft 10 is sleeved in the bearings 6, the end part of the motor shaft extends out of the surface of the bearings 6, and the bearings 6 and the motor shaft 10 are fastened through clamp springs 11; the control panel 8 is fixed on the support 9 through a screw 7; stator module, claw utmost point formula rotor 20, copper spare 1 and control panel 8 are established to the cover in proper order on the motor shaft 10 to make above-mentioned rotor module, stator module and control panel assemble an organic whole.

Compared with a synchronous motor, the motor has high magnetic energy utilization rate, namely high efficiency; compared with a brushless direct current motor, the brushless direct current motor has the advantages of more poles and grooves, large torque, low rotating speed and low cost.

The working principle is as follows: the copper part 1, the first shell 2 and the motor shaft 10 are riveted or welded into a whole, and then assembled with the permanent magnet 3 and the second shell 4 into a whole, wherein the assembly is a rotor assembly; and winding the stator core 5, namely winding the stator core, namely mounting the stator assembly, the control plate 8 and the bearing 6 on a support 9, and assembling the stator assembly, the control plate 8 and the bearing 6 with the rotor assembly, the clamp spring 11 and the screw 7 to form a complete machine, namely a claw-pole outer rotor hybrid stepping motor.

In some embodiments, the stator assembly is a BLDC structure (Brushless dc) and has a plurality of small teeth formed on the stator teeth.

In some embodiments, the first housing 2 and the second housing 4 have the same number of poles.

In some embodiments, the first housing 2 and the second housing 4 are one or more pairs.

In some embodiments, the permanent magnet 3 is a pair of poles.

Example two:

the difference from the first embodiment is that: the motor of the second embodiment is an inner rotor motor, the inner rotor motor is arranged in a transmission part (claw pole type rotor 20) inside, and an outer motor shell (comprising a motor shell 19 and an end cover 24) is static and static.

Referring to fig. 5-6, another claw-pole rotor hybrid stepper motor is provided that includes a rotor assembly, a stator assembly, and a control plate.

The stator assembly includes: stator core 5 and the winding that sets up on stator core 5, stator core 5 and both sides are provided with insulator 14 for stator module does not contact with motor housing 19, control panel 8.

The stator assembly, the rotor assembly and the control board are respectively arranged in a motor shell, two ends of the motor shell are provided with bearings 6 (one in front and back), a motor shaft 10 is sleeved in the bearings 6, the end part of the motor shaft extends out of the surface of the bearings 6, and the bearings 6 and the motor shaft 10 are fastened through clamp springs 11; the motor shaft 10 is further sleeved with a stator assembly, a claw pole type rotor 20, a copper part 1 and a control plate 8, so that the rotor assembly, the stator assembly and the control plate are assembled into a whole.

The working principle is as follows: the copper part 1, the first shell 2 and the motor shaft 10 are riveted or welded into a whole, and then assembled with the permanent magnet 3 and the second shell 4 into a whole, wherein the assembly is a rotor assembly; the stator core 5 is wound to form a stator assembly, the rotor assembly, the control board 8 and the bearing 6 are sequentially installed in the motor shell 19, and then the stator assembly, the rotor assembly, the control board 8 and the bearing 6 are assembled with the motor shaft 10 to form a whole machine, namely a claw-pole inner rotor hybrid stepping motor.

In some embodiments, the permanent magnet 3 is a pair of poles.

The present application has been described with reference to specific examples, which are provided only to aid understanding of the present application and are not intended to limit the present application. For a person skilled in the art to which the application pertains, several simple deductions, modifications or substitutions may be made according to the idea of the application.

Claims

1. The utility model provides a mixed step motor of claw utmost point formula rotor, includes rotor subassembly, stator module and control panel, its characterized in that:

the rotor assembly includes: the motor shaft, the first shell, the second shell and the copper part are assembled into a whole, the first shell and the second shell are of claw-pole type structures, the first shell and the second shell are made of magnetic conductive materials, a permanent magnet is arranged between the first shell and the second shell, the first shell, the permanent magnet and the second shell form a claw-pole type rotor, and the motor shaft is fixedly connected with the claw-pole type rotor;

the rotor assembly, the stator assembly and the control plate are assembled into a whole.

2. The claw-pole rotor hybrid stepper motor of claim 1, wherein the claw-pole rotor is an outer rotor or an inner rotor.

3. The claw-pole rotor hybrid stepping motor according to claim 1, wherein the stator assembly is of a BLDC structure, and a plurality of small teeth are formed on the stator teeth.

4. A claw-pole rotor hybrid stepper motor as in claim 1, wherein the first housing and the second housing have the same number of poles.

5. A claw-pole rotor hybrid stepping motor as claimed in any one of claims 1 to 4, wherein the first housing and the second housing are one or more pairs.

6. A claw-pole rotor hybrid stepper motor as defined in any of claims 1-4, wherein the permanent magnets are a pair of poles.