Unlock instant, AI-driven research and patent intelligence for your innovation.

Magnet polarity layout of motor rotor

A motor rotor and polarity technology, applied in the direction of magnetic circuit rotating parts, magnetic circuit shape/style/structure, etc., can solve the problem that the magnetic block cannot be made very thick, achieve significant economic benefits, and increase motor torque Effect

Inactive Publication Date: 2012-06-13
平国民
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The surface area at both ends of the long magnetic block is the key factor to determine the number of magnetic force lines, but due to the limitation of the rotor diameter, the magnetic block cannot be made very thick

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
  • Magnet polarity layout of motor rotor
  • Magnet polarity layout of motor rotor
  • Magnet polarity layout of motor rotor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The magnet polarity arrangement of a 4-pole motor rotor is as follows figure 1 As shown, the two sides with the largest surface area are respectively set as N poles and S poles; four magnetic block arrays are evenly distributed on the motor rotor, when the N pole of a magnetic block approaches the stator outward, the S pole of the adjacent magnetic block Close to the stator outward, whether it is a motor with 4 poles, 6 poles, 8 poles or more poles, it is handled according to this principle.

[0018] According to the actual test of the present invention, the output torque of the motor is increased by more than 1.1 times.

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

A magnet polarity layout of a motor rotor is disclosed. An N pole is arranged on one side of two opposite sides of a largest surface area of a magnetic block and an S pole is arranged on the other side. When a magnetic block array is uniformly distributed on the rotor, polar sides are outward and polarities of adjacent magnetic blocks are opposite. In other words, when the N pole of the magnetic block is outwardly close to a stator, the S pole of the adjacent magnetic block is outwardly close to the stator. The motor with four poles, six poles, eight poles or more poles is processed according to a principle. By using the layout of the invention, under the condition of not changing a rotor diameter, a motor torque is doubled. Cost does not to be increased. The layout is especially suitable for the large power motor and economic benefit is remarkable.

Description

technical field [0001] The invention relates to the field of motor manufacturing, in particular to a magnet polarity layout of a motor rotor of a permanent magnet motor. Background technique [0002] The motor rotor is the key part of the motor, and the magnetic blocks fixed on it are long strips, and foreign motors also use arc-shaped long magnetic blocks. One end of the strip is N pole and the other end is S pole. The magnetic force line passes from the N pole to the S pole, forming a magnetic force line loop between the two poles. The magnetic blocks are evenly distributed on the circumference of the rotor. When the alternating stator magnetic force lines cut the rotor magnetic force lines, the rotor is driven to rotate at high speed in the stator. The driving torque depends on the strength of the magnetic force lines. The surface area at both ends of the long magnetic block is the key factor to determine the number of magnetic force lines, but due to the limitation of t...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H02K1/27
Inventor 平国民
Owner 平国民