Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

An electric machine

A technology for rotating electrical machines and electric power, applied in the field of permanent magnet motors, which can solve problems such as low efficiency

Inactive Publication Date: 2011-10-05
钱蒂 森格钱
View PDF6 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing electric motors may have inefficient control circuits and processes that provide power to

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
  • An electric machine
  • An electric machine
  • An electric machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0052] Described herein are electric machines (such as rotary motors, rotary generators, linear motors or linear generators) having two components arranged to convert between electrical energy and mechanical energy through magnetic interaction. The two components are, for example, a stator and a rotor (in a rotary electric machine) or a stator and a mover (in a linear electric machine). Each part consists of an integer number of sections of equal length (angular for rotary motors, or linear for linear motors).

[0053] motor configuration

[0054] Such as figure 1 As shown, portions such as first portion 102 and second portion 104 each include a body 106 , 108 and one or more magnetic poles 110 , 112 . In operation, the two parts 102 , 104 move relative to each other in a direction of motion 114 aligned with the aligned poles 110 , 112 . The two parts 102 , 104 interact magnetically due to the magnetic fields generated by the magnets included in the poles 110 , 112 . 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

An electric machine including: a first part, being a stator or rotor/runner, including a first segment with a first number of mutually spaced poles; a second part, being a rotor/runner or stator, including a second segment with a second number of mutually spaced poles arranged to transduce between electrical and mechanical energy by magnetic interaction with the poles of the first segment, the second segment having substantially the same length as the first segment; and permanent magnets in the poles of the first or second parts, wherein the second number differs from the first number by one to substantially reduce the magnetic interference forces in the direction of motion, wherein gap depths in gaps between the poles of each part are sufficiently deep to substantially attenuate magnetic interactions between a body of each part and the poles of the other part, thereby reducing magnetic interference forces between the first part and the second part, and wherein each part is symmetrical in a direction transverse a direction of motion between the first part and the second part and transverse a depth of the parts for substantially balancing magnetic forces acting perpendicular to the direction of motion.

Description

technical field [0001] The present invention relates to electrical machines, in particular to electrical machines having permanent magnets arranged to reduce magnetic interference forces. Background technique [0002] In existing electrical machines, including those with permanent magnets, magnetic interference forces cause undesired energy loss, motor wear and / or disruption of smooth operation. Electric machines, also known as generators, include linear motors, rotary motors, and generators. Magnetic disturbance forces (including moments) include forces caused by magnetic interactions that prevent or at least do not facilitate efficient conversion between electrical and mechanical energy, thus reducing the efficiency and / or smooth operation of the motor. Magnetic disturbance forces can include forces against motion (such as cogging moments in rotating electric machines) and attractive forces between moving parts (such as between a rotor and a stator), which can generate fr...

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): H02K1/06
CPCH02K41/03H02K1/146H02P6/20H02P9/009H02K41/031H02K21/16H02P6/006
Inventor 钱蒂 森格钱
Owner 钱蒂 森格钱
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com