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Stator and servo motor comprising same

A technology of servo motor and stator, applied in the field of servo drive system, can solve the problem of high material cost, achieve the effect of small effective air gap, less amount of magnetic steel, and low cost

Pending Publication Date: 2021-12-10
THYSSENKRUPP ELEVATORS SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The motor has the advantages of light weight, small size and high power density, but at the same time, the motor also has the disadvantage of high material cost

Method used

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  • Stator and servo motor comprising same
  • Stator and servo motor comprising same
  • Stator and servo motor comprising same

Examples

Experimental program
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Embodiment Construction

[0042] figure 1 It is a schematic diagram of a single-stator dual-rotor servo motor according to an exemplary embodiment of the present invention; Figure 2A with Figure 2B for figure 1 An exploded view of the single-stator dual-rotor servo motor shown in ; image 3 A cross-sectional view is presented for a single-stator dual-rotor servo motor cut along a radial direction according to an exemplary embodiment of the present invention.

[0043] like figure 1 , 3 As shown in , the single-stator double-rotor servo motor according to the exemplary embodiment of the present invention includes a motor shaft 1 , a motor end cover 2 , two rotors 3 , a casing 4 , and a stator 5 .

[0044] The motor shaft 1 has a stepped cylindrical shape as a whole, that is, the motor shaft 1 is integrally formed by a plurality of cylinders with different diameters. Specifically, the motor shaft 1 has a first section 11 with the largest diameter in the middle of the axial direction. Both sides of t...

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PUM

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Abstract

The invention relates to a stator and a servo motor comprising the same. The servo motor comprises a motor shaft, a motor end cover, a rotor, a casing and the stator, wherein the motor shaft penetrates through the motor end cover, the rotor and the stator and is rotatably connected to the bottom of the shell, the motor end cover and the shell define a closed space, and the rotor and the stator are located in the closed space; the rotor comprises a rotor yoke and a plurality of pieces of magnetic steel attached to the rotor yoke, the rotor is fixedly connected to the motor shaft so as to rotate together with the motor shaft, each piece of magnetic steel is integrally in a sector shape and is uniformly distributed on one side of the rotor yoke at certain intervals along the outer circumference of the rotor yoke, the rotor and the stator are arranged adjacently, and the side, which is attached with the magnetic steel, of the rotor yoke faces the stator, so that an excitation magnetic field is provided for the stator; and the stator comprises a stator printed board and a plurality of stator cores, a plurality of hollow parts are formed on the stator printed board, the plurality of stator cores are installed in the hollow parts, a printed winding is arranged on the stator printed board, and torque is generated through the action of the printed winding and a rotor magnetic field.

Description

technical field [0001] The invention relates to the field of servo drive systems, and more specifically, to a stator and a servo motor including the stator. Background technique [0002] Axial flux permanent disk motors have stator windings distributed in the radial direction, and the ends of the windings do not occupy axial space, and the surface area of ​​the rotor is larger than that of radial excitation motors, which can accommodate more magnetic steel, making the shaft of the motor greatly reduced in length. Compared with ordinary motors, axial flux motors have the advantages of small size and high power density, and are more and more widely used. [0003] A printed circuit board statorless core motor is proposed in the related art, wherein the stator of the motor adopts a printed circuit board, and the rotor adopts two rotor disks. The motor has the advantages of light weight, small volume, and high power density, but at the same time, the motor also has the disadvan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/12H02K1/27H02K3/26H02K11/215H02K16/00
CPCH02K16/00H02K1/12H02K1/2793H02K3/26H02K11/215
Inventor 钟跃冯智海
Owner THYSSENKRUPP ELEVATORS SHANGHAI CO LTD
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