Unlock instant, AI-driven research and patent intelligence for your innovation.

Three-phase stepping motor

A stepper motor, three-phase technology, applied in electrical components, electromechanical devices, etc., can solve the problems of small motor torque, no way to apply, limited by torque, etc., to achieve the effect of increasing torque, improving torque shortage, and better effect

Pending Publication Date: 2017-07-07
SHANGHAI MOONS ELECTRICAL APPLIANCE
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the existing three-phase stepping motor, the winding method of the stator is that the coil is wound on the single pole of the stator. The principle is as follows: figure 1 and figure 2 As shown, the current three-phase stepping motor, compared with the widely used two-phase stepping motor, has a small motor torque. In many applications, it is limited by the torque and cannot be applied.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Three-phase stepping motor
  • Three-phase stepping motor
  • Three-phase stepping motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A three-phase stepping motor includes a stator 1, a rotor and coils. The stator is provided with 12 stator poles 11, and the coil is wound on the stator in a manner of straddling at least two stator poles.

[0027] The coil is wound on the stator across two stator poles. In order to better implement the scheme of the three-phase stepping motor stator cross-pole winding to increase the torque, the stator pole slots are embedded with magnetic strips 113 . There are 2-4 magnetic strips, preferably 3 magnetic strips, which can better ensure a large increase in torque.

Embodiment 2

[0029] The coils are wound on the stator across three stator poles, and the rest are the same as in Embodiment 1.

[0030] Such as Figure 7 As shown, the ampere-turns torque curves of different windings reflect different input currents and the ability of the motor to output torque. From the data of the current ampere-turns torque curve data, the stator cross-pole winding of the motor with magnetic strips has a torque of 90 % increase.

[0031] Such as Figure 8 Shown are the PULL OUT (pull out torque) curves of different windings: the torque output at different speeds. From the data of the PULL OUT (pull out torque) curves, the stator straddle winding magnetic stripe motor, in Within the range of 500RPM, the output torque of the motor is greatly improved during operation.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a three-phase stepping motor comprising a stator, a rotor and a coil. The stator is provided with 12 stator poles. The coil is wound on the stator at intervals of at least two stator poles. Compared with the prior art, the three-phase stepping motor of the invention has the advantage of greatly increased torque, and the like.

Description

technical field [0001] The invention relates to a motor, in particular to a three-phase stepping motor. Background technique [0002] A stepper motor is an open-loop control motor that converts electrical pulse signals into angular displacement or linear displacement. The types of stepper motors are divided according to the number of phases, usually divided into two-phase, three-phase and five-phase. Compared with three-phase stepping motor, it has better running stability, and the drive control is relatively easy to realize, so it has a good application prospect. [0003] In the existing three-phase stepping motor, the winding method of the stator is that the coil is wound on the single pole of the stator. The principle is as follows: figure 1 and figure 2 As shown, compared with the widely used two-phase stepping motor, the current three-phase stepping motor has a small motor torque. In many applications, it is limited by the torque and cannot be applied. Contents of...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H02K37/00
CPCH02K37/00
Inventor 张欢韩光鲜刘安元
Owner SHANGHAI MOONS ELECTRICAL APPLIANCE