Dual radial directions magnetic field reaction type straight-line rotating stepper motor

A stepping motor and reactive technology, applied in the direction of electrical components, electromechanical devices, propulsion systems, etc., to achieve the effect of simple structure, simple processing technology and low cost

Inactive Publication Date: 2009-01-28
UNIV OF SHANGHAI FOR SCI & TECH
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Problems solved by technology

[0003] The present invention is aimed at the lack of stepping motors capable of both rotating and rectilinear motion, high efficiency and high power in the existing domestic market, and proposes a dual-radial magnetic field responsive linear rotary stepper motor, which can not only move rectilinearly, but al

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  • Dual radial directions magnetic field reaction type straight-line rotating stepper motor
  • Dual radial directions magnetic field reaction type straight-line rotating stepper motor
  • Dual radial directions magnetic field reaction type straight-line rotating stepper motor

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Embodiment Construction

[0023] The dual radial magnetic field reactive linear rotary stepper motor utilizes a stator radial magnetic field and a stator axial magnetic field generated by different magnetic poles of the two stators. Due to the special structure of the stator and rotor, these two magnetic fields become two spatial three-dimensional in the rotor. Intersecting radial magnetic fields, these two magnetic fields generate reluctance rotational torque and reluctance linear thrust respectively according to the principle of reluctance. The control system can make the motor realize independent rotary motion, independent linear motion or helical motion according to the requirement. Since the present invention utilizes the two sections of stator poles to generate a magnetic field intersecting in two spaces, axial and radial, while the rotor magnetic circuit is a two-space radial flux path, which greatly simplifies the structure of the rotor, and can use a laminated structure , increasing the rotor ...

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Abstract

The invention relates to a biradial magnetic field reactive linear rotary stepping motor. The two sections of magnetic poles of a stator of the stepping motor generate an axial magnetic field and a radial magnetic field which are intersected. A magnetic path of a rotor has two space radial magnetic flux paths so that the rotor structure is greatly simplified and the lamination structure is used, thereby increasing the magnetic conductivity of the rotor and reducing the magnetic reluctance of the magnetic path and the volume of the motor. The stepping motor not only can move linearly but also rotate and do spiral motion. Compared with the reluctance linear stepper motor, the biradial magnetic field reactive linear rotary stepping motor has a simple structure and simple processing technique due to the absence of a permanent magnet, simply needs a unipolar drive power supply in the control aspect, and has a simple control circuit, low total cost and high reliability.

Description

technical field [0001] The invention relates to a stepping motor in the field of motors, in particular to a stepping motor with rotary motion, linear motion and helical motion with mixed motion. Background technique [0002] Traditional motors mainly use rotary motion or linear motion. When the system requires both rotation and linear motion, it must be realized by mechanical means, resulting in bulky equipment and increased weight. At present, as far as the principle of motor force generation is concerned, there are three forms: one is the principle of electromagnetic action, most of the motors in operation today are this type of motor, and it is difficult to accurately control the linear rotary motor made by this principle; the other is the principle of electromagnetic action. It is the principle of reluctance. Most of the precise control motors in operation today are this type of motor, but this type of motor basically only has linear motion or only rotational motion; the...

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Application Information

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IPC IPC(8): H02K41/06H02K37/00
Inventor 杨文焕怡勇赵天明
Owner UNIV OF SHANGHAI FOR SCI & TECH
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