Halbach permanent magnet linear oscillation motor and operation method thereof

A technology of oscillating motors and permanent magnet straight lines, applied in the direction of electrical components, electromechanical devices, magnetic circuit rotating parts, etc., can solve the problems of difficult manufacturing and high manufacturing costs of motors, achieve reduced magnetic flux leakage, good magnetic shielding effect, and enhanced gas Effect of Gap Density

Inactive Publication Date: 2015-10-28
ZHEJIANG SCI-TECH UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method has strict requirements on the material of the magnetic circuit, and the manufacturing cost of the motor is high, and it is not easy to manufacture.

Method used

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  • Halbach permanent magnet linear oscillation motor and operation method thereof
  • Halbach permanent magnet linear oscillation motor and operation method thereof

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Embodiment Construction

[0024] Please refer to the attached figure 1 And attached figure 2 As shown, the present invention is a Halbach permanent magnet linear oscillating motor, which is assembled from several parts such as a casing 1, a stator main core 2, a mover core 3 and a linear shaft 4.

[0025] Wherein, the stator main iron core 2 is fixed in the casing 1, and a winding 5 is arranged on it, and the stator main iron core 2 and the winding 5 together form a stator. Specifically, two stator main cores 2 are provided along the axial direction; the windings 5 ​​on the two stator main cores 2 are connected in series. Each stator main iron core 2 is provided with auxiliary small iron cores 8 to reduce the flux leakage at the interval between the two stators, enhance the air gap flux density between the two stators of the permanent magnet linear oscillation motor, and improve the utilization rate of the permanent magnets. At the same time, the movement stroke of the mover is expanded.

[0026] T...

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Abstract

The present invention relates to a Halbach permanent magnet linear oscillation motor, which comprises a housing, a stator main iron core, a rotor iron core and a linear axis. The stator main iron core is fixedly held in the housing and a winding is wound onto the stator main iron core. The rotor iron core is accommodated in the housing and is arranged opposite to the stator main iron core. A Halbach permanent magnet array is arranged outside the rotor iron core. The linear axis runs through the housing and is pivotably connected with the housing through a pair of linear bearings. The rotor iron core is fixedly arranged onto the linear axis and is in linkage with the linear axis. The Halbach permanent magnet array is adopted by the Halbach permanent magnet linear oscillation motor, so that an air gap flux larger than that of a conventional magnet can be obtained. Meanwhile, the Halbach permanent magnet linear oscillation motor is good in magnetic shielding effect and can reduce the thickness of a rotor magnetic-conductive yoke.

Description

【Technical field】 [0001] The invention relates to a linear motor and its operating method, in particular to a Halbach permanent magnet linear oscillating motor and its operating method, and belongs to the technical field of motors. 【Background technique】 [0002] The traditional compressor converts the rotary motion of the rotary motor into the linear reciprocating motion of the piston through the crank-link mechanism, which has disadvantages such as complex system structure, large friction loss, low transmission efficiency and poor reliability. The use of a linear motor to directly drive the reciprocating motion of the piston can save the intermediate conversion mechanism and improve the transmission efficiency and reliability. How to further improve the thrust or power density and motion stroke of linear motors has always been a key issue in the field of linear motors. [0003] Chinese patent application number CN200610052853.5 discloses a linear oscillating motor with ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K33/18H02K1/27
Inventor 裴同豪雷美珍王立强夏永明
Owner ZHEJIANG SCI-TECH UNIV
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