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

Motors and Compressors

A technology of rotor and stator teeth, applied in electromechanical devices, electrical components, electrical components, etc., can solve the problems of worsening motor noise, low motor efficiency, and high iron consumption

Active Publication Date: 2021-07-30
ANHUI MEIZHI PRECISION MFG
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the motor, when the composite harmonic magnetic field of the stator and the rotor is large, it will cause high iron loss, low motor efficiency and worsen motor noise

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
  • Motors and Compressors
  • Motors and Compressors
  • Motors and Compressors

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] combine figure 1 , figure 2 with Figure 4 As shown, the embodiment of the first aspect of the present invention provides a motor, including: a rotor 100 and a stator 200 . The circle passing through the outermost contour of the radial section of the rotor 100 is defined as a contour circle, and the center of the contour circle passes through the axis of the rotor 100 . The stator 200 is arranged concentrically with the rotor 100. The stator 200 includes a stator yoke 210 and a stator tooth 220. There are multiple stator teeth 220. 220 includes a first tooth shoe 221 and a second tooth shoe 222. Along the rotation direction of the rotor 100, the rotor 100 passes through the first tooth shoe 221 and the second tooth shoe 222 in sequence. The minimum distance between the first tooth shoe 221 and the outline circle is L1 , the minimum distance between the second tooth shoe 222 and the outline circle is L2, and L1 is greater than L2.

[0060] The motor provided by the ...

Embodiment 2

[0067] combine figure 1 , figure 2 with Figure 5 As shown, in a specific embodiment based on the first embodiment, the end surface of the stator tooth 220 facing the rotor 100 is configured as an arc surface; the center of the section of the arc surface along the radial direction of the stator 200 is eccentric to the center of the contour circle set up.

[0068] In this embodiment, the shape of the end surface of the stator teeth 220 facing the rotor 100 is specifically defined. Since the end surface of the stator 200 facing the rotor 100 is an arc surface, the stator teeth 220 and the rotor The distance between the stator teeth 220 and the rotor 100 increases gradually, rather than the distance between the stator teeth 220 and the rotor 100 increases suddenly, so that the weakening effect on the synthesized harmonic magnetic field can be improved, and the sudden change of the distance between the stator teeth 220 and the rotor 100 can be avoided. It affects the working s...

Embodiment 3

[0075] Such as figure 1 As shown, in a specific embodiment of the above-mentioned embodiments, the stator yoke 210 has a rotor installation opening, a plurality of stator teeth 220 are located in the rotor installation opening, and the part of the rotor installation opening where the plurality of stator teeth 220 are away from the stator yoke 210 is the rotor slot, and the rotor 100 is rotatably disposed in the rotor slot.

[0076] In this embodiment, the stator yoke 210 is an annular structure, the annular structure in the stator yoke 210 is the rotor installation opening, and a plurality of stator teeth 220 are located in the rotor installation opening, that is, the plurality of stator teeth 220 are installed in the stator yoke 210, a plurality of stator teeth 220 away from the stator yoke 210 part of the mounting opening is a rotor slot, the rotor 100 is rotatably arranged in the rotor slot, that is, the rotor 100 is located inside the stator 200, the stator 200 and the rot...

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

The invention provides a motor and a compressor, wherein the motor includes: a rotor, the circle passing through the outermost contour of the radial section of the rotor is set as a contour circle, and the center of the contour circle passes through the axis of the rotor; a stator is arranged concentrically with the rotor , the stator includes a stator yoke and stator teeth, and there are multiple stator teeth. In the direction of rotation, the rotor passes through the first tooth shoe and the second tooth shoe in sequence. The minimum distance between the first tooth shoe and the contour circle is L1, the minimum distance between the second tooth shoe and the contour circle is L2, and L1 is greater than L2. By setting the direction of rotation against the rotor, the distance between the stator teeth and the rotor tends to become larger, so that the phase difference of the harmonic magnetic field of the stator and rotor teeth under load tends to tend to 180° from 90°, effectively reducing the synthesized harmonic magnetic field The peak value of the motor can reduce the iron loss and electromagnetic excitation of the motor, improve the efficiency of the motor and reduce the noise.

Description

technical field [0001] The invention belongs to the technical field of motors, and in particular relates to a motor and a compressor. Background technique [0002] In the motor, when the synthetic harmonic magnetic field of the stator and the rotor is large, the iron loss is high, the motor efficiency is low, and the noise of the motor is deteriorated. Contents of the invention [0003] The present invention aims to solve one of the technical problems existing in the prior art or related art. [0004] In view of this, the first aspect of the present invention proposes a kind of motor, comprising: rotor, the circle passing through the outermost contour of the radial section of the rotor is set as a contour circle, and the center of the contour circle passes through the axis of the rotor; Concentrically arranged, the stator includes a stator yoke and stator teeth, and there are multiple stator teeth. In the direction of rotation of the rotor, the rotor passes through the f...

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 Patents(China)
IPC IPC(8): H02K1/14H02K1/27
CPCH02K1/146H02K1/276H02K2213/03
Inventor 刘法民邱小华江波吴迪李宏涛王玉龙
Owner ANHUI MEIZHI PRECISION MFG