U-shaped structure magnetism gathering type permanent magnet motor

A permanent magnet motor and magnetism-concentrating technology, which is applied in the field of U-shaped structure magnetism-concentrating permanent magnet motors, can solve the problems of high additional cost for installation and transportation, increased motor cost, limited power density, etc., and can improve the working point of the magnetic circuit , Inherent friction is reduced, and the overall width is small

CN113328601APending Publication Date: 2021-08-31SUZHOU SEIDAL INTELLIGENT TECH CO LTD
6 Cites 2 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2021-08-31

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a U-shaped structure magnetism gathering type permanent magnet motor. The permanent magnet motor mainly structurally comprises a rotor and a stator and can be a linear motor or a rotary motor. The permanent magnet motor is mainly characterized in that the stator (mover) is of a U-shaped structure, the mover (stator) is embedded into the U-shaped stator (mover), and a certain air gap is kept between the mover (stator) and the U-shaped stator (mover). The rotor and the stator are provided with a plurality of permanent magnets which are installed according to a characteristic installation mode, a strong magnetic gathering effect is achieved, a magnetic field working point of a main magnetic circuit is remarkably increased, a magnetic leakage coefficient is reduced, then higher thrust density is obtained under the condition of smaller volume and weight, and meanwhile the magnetic field magnetic field magnetic field permanent magnet motor has lower cost and a simpler assembly mode. In addition, by saving the number of permanent magnets on the U-shaped stator (mover), the stator (mover) non-magnetic track motor structure can be simplified into a stator (mover) non-magnetic track motor structure which is lower in cost, simpler to assemble and more suitable for long-stroke occasions.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of permanent magnet motors, in particular to a U-shaped structure magnetism-concentrating permanent magnet motor. Background technique

[0002] In recent years, with the rapid development of intelligent robots, high-end machine tools, 3C industries, laser cutting, LCD panels, and lithium battery industries, for high-speed, high-precision, and long-stroke linear travel applications, screw or belt-driven Sliding linear motion systems have been difficult to meet the needs of practical applications. Linear motors can directly generate linear motion based on the working principle of traditional rotary motors. They are suitable for working conditions such as long strokes, high precision, high dynamic response, and long life. They have become more and more popular in the market in recent years.

[0003] At present, the mainstream solution of linear motor usually adopts permanent magnet linear motor. The working p...

Examples

Embodiment Construction

[0024] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with a specific implementation example of the present invention.

[0025] It includes two parts, the mover and the stator. It is characterized in that: the stator is a U-shaped structure, the mover is embedded in the stator, and there is a certain air gap between the stator and the stator. The stator includes the stator core and the stator magnetic gathering unit, and the mover Including windings, mover cores, and mover magnetic gathering units, a complete mover consists of no less than 3 mover units, each mover unit contains 1 set of windings, 1 mover core and no less than 1 mover magnetism gathering unit, the mover magnetism gathering unit has an O-shaped structure, composed of 4 pieces of permanent magnets, the magnetization direction of all permanent magnets points to the ...