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Permanent magnet servo motor

A permanent magnet servo motor and yoke technology, which is applied to synchronous motors, magnetic circuits, and electric components with static armatures and rotating magnets, which can solve the adverse effects of motor power density, reduce labor productivity, and reduce the amount of permanent magnets. Limitations and other issues, to achieve the effects of excellent corrosion resistance, reduced hysteresis loss, and high permeability

Inactive Publication Date: 2020-03-24
HANGZHOU MEISHIMEIKE IOT TECH CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The stator of the permanent magnet motor with a general structure adopts a full-circle punching sheet to laminate the iron core, and then it is manually off-line, which greatly reduces the labor production efficiency, and there will be a large gap between the coil and the iron core, which is not conducive to the heat dissipation of the stator; the rotor is mostly used The permanent magnet surface-adhesive structure may cause the danger of the permanent magnet being thrown out during high-speed operation, and the amount of permanent magnets is limited by the size of the punching sheet, which will have a negative impact on the power density of the motor

Method used

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Embodiment Construction

[0022] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments. In the following description, characteristic details such as specific configurations and components are provided only to help a comprehensive understanding of the embodiments of the present invention. Accordingly, those of ordinary skill in the art should recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

[0023] It should be understood that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic related to the embodiment is included in at least one embodiment of th...

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Abstract

Provided is a permanent magnet servo motor. The motor comprises a shell, and a stator, a rotor and a rotating shaft arranged in the shell. The stator is fixedly arranged on the inner wall of the cylinder body. A coil is wound on the stator. The rotor is arranged on the outer circumference of the rotating shaft. A magnet yoke is arranged on the outer circumference of the rotor. A plurality of magnet yoke protrusions are connected to the periphery of the magnet yoke at equal intervals, a magnet groove is formed between every two adjacent magnet yoke protrusions, a permanent magnet is arranged ineach magnet groove and comprises N-pole magnetic steel and S-pole magnetic steel, and the N-pole magnetic steel and the S-pole magnetic steel are arranged in the magnet grooves in a staggered mode. The stator is formed by laminating original silicon steel sheets, the rotor is formed by laminating rotor punching sheets, and the surface of each permanent magnet is coated with a layer of anti-corrosion oil suspension composition. Therefore, the performance, heat resistance and corrosion resistance of the permanent magnet servo motor are effectively improved.

Description

technical field [0001] The invention belongs to the technical field of motors, and in particular relates to a permanent magnet servo motor. Background technique [0002] With the improvement of permanent magnet performance and price reduction, as well as the rapid development of power electronic control technology and microelectronic device development technology, permanent magnet servo control system has been developed rapidly. A series of advantages brought about by replacing the rotor winding in the wound rotor with permanent magnets, such as no heating problem of the rotor, simple control system, small size, light weight, high power density, high operating efficiency and high Running speed, etc., make permanent magnet synchronous servo motors widely used in high-performance and high-precision motion control fields such as CNC machine tools and robots, as well as some low-power applications. [0003] The stator and rotor structure and manufacturing process of permanent m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K21/14H02K1/12H02K1/27H02K5/20H02K5/10
CPCH02K1/12H02K1/278H02K5/10H02K5/20H02K21/14
Inventor 朱团团
Owner HANGZHOU MEISHIMEIKE IOT TECH CO
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