Single-phase AC permanent-magnet synchronous motor

A permanent magnet synchronous, single-phase AC technology, applied to synchronous motors with stationary armatures and rotating magnets, magnetic circuit rotating parts, magnetic circuit shape/style/structure, etc., can solve the problem of motor efficiency and output power reduction , small torque, proportional increase, etc., to improve efficiency and power factor, reduce copper loss and iron loss, and reduce the effect of induced current

Inactive Publication Date: 2002-10-23
刘硕成 +1
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of motor has the following disadvantages: firstly, the copper loss and iron loss of the motor rotor are relatively large, and the two losses generally account for about 17% of the total loss. With the internal temperature rise of the motor, the copper loss and ir

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
  • Single-phase AC permanent-magnet synchronous motor
  • Single-phase AC permanent-magnet synchronous motor
  • Single-phase AC permanent-magnet synchronous motor

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0020] The single-phase permanent magnet synchronous motor of the present invention is composed of a shell, a front bearing, a rear bearing, a front end cover, a rear end cover, a stator, a stator winding, a rotor squirrel cage, a rotor core and a rotor composed of permanent magnets. There are fan blades and fan blade covers at both ends of the core. Permanent magnets arranged symmetrically according to N-S poles are embedded on the surface of the rotor, and the number of pole pairs is set according to the number of poles of the motor. The thickness of the permanent magnet and the intensity of the magnetic field depend on the magnetic density of the motor stator. Each permanent magnet is separated by a magnetic metal. A magnetic field loop is formed between two adjacent N-S permanent magnets through a magnetic metal material. When a single-phase alternating current is passed through the stator coil, the current alternating rotating magnetic field in the stator winding acts on the ...

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

This invention relates to a single phase AC permanent synchronous electric motor composed of a stator winding and a permanent magnet rotor in which the stator winding contains a main winding and a sub winding the same wire gauge and conductor coil numbers composed of single-layer single lap or single-layer cross winding. The permanent magnet of the rotor and the magnet conductive core share the perimeter of the rotor and the magnetic density generated by the permanent magnet should be one third of that of the stator electric magnet and the electric-conduction metal bar numbers of the rotor squirrel-cage are determined by 0.81-0.92 times of those of the stator core slots. The invention ensures the efficiency power and torque outupt with high efficiency and electricity energy saving.

Description

technical field [0001] The invention relates to a single-phase permanent magnet synchronous motor. Background technique [0002] The traditional Y series asynchronous motor includes: stator, stator winding, rotor and casing, etc. This kind of motor has the following disadvantages: firstly, the copper loss and iron loss of the motor rotor are relatively large, and the two losses generally account for about 17% of the total loss. With the internal temperature rise of the motor, the copper loss and iron loss of the stator The loss increases in direct proportion; secondly, the asynchronous motor has the disadvantage of large slip, generally within 10%, resulting in a reduction in motor efficiency and output power; thirdly, the starting torque is small. Contents of the invention [0003] The single-phase AC permanent magnet synchronous motor of the invention can make the loss of the permanent magnet rotor zero and ensure the slip rate of the motor is zero; at the same time, th...

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
IPC IPC(8): H02K1/27H02K21/14
Inventor 刘硕成檀硕春
Owner 刘硕成
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap