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

Low-noise DC motor and method of reducing electromagnetic noise

A DC motor and low-noise technology, which is applied in the field of low-noise DC motors and electromagnetic noise reduction, and can solve the problems that the electromagnetic noise of low-noise DC motors is difficult to reduce.

Pending Publication Date: 2018-03-02
深圳市昱森机电有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a low-noise DC motor to alleviate the technical problem that the electromagnetic noise of the low-noise DC motor in the prior art is difficult to reduce

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
  • Low-noise DC motor and method of reducing electromagnetic noise
  • Low-noise DC motor and method of reducing electromagnetic noise

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0032] The core of the present invention is to provide a low-noise DC motor to alleviate the technical problem that the electromagnetic noise of the low-noise DC motor is difficult to reduce in the prior art.

[0033] Such as figure 2 As shown, a low-noise DC motor is provided in this embodiment, including a rotor and a stator, and the rotor is sleeved in the stator. The rotor includes an armature iron core, and the armature iron core has an armature slot 17 for placing the armature winding. The stator includes magnetic poles 9, and the magnetic poles are arranged on the inner side wall of the stator. The ratio of the groove depth of the armature groove (the absolute value of the difference between L2 and L3) to the thickness of the magnetic pole (L1) is between 1.7 and 3.

[0034]At present, even if the mechanical noise and the commutator noise have been improved, the noise of the DC motor still cannot reach a lower standard. At this time, it is necessary to take measures t...

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 present invention provides a low-noise DC motor, and relates to the motor technology field. The low-noise DC motor comprises a rotor and a stator, the stator sleeves the rotor, and the rotor comprises an armature iron core. The armature iron core is equipped with an armature slot for placing an armature winding, the stator comprises a magnetic pole arranged on the inner side wall of the stator, and the ratio of the depth of the armature slot and the thickness of the magnetic pole is between 1.7 and 3. The low-noise DC motor of the application relieves the technical problem in the prior artthat the electromagnetic noise of the low-noise DC motor is difficult to reduce. The present invention also provides a method of reducing the electromagnetic noise comprising the above low-noise DC motor.

Description

technical field [0001] The invention relates to the technical field of motors, in particular to a low-noise DC motor. The present invention also relates to a method for reducing electromagnetic noise with the above-mentioned low-noise DC motor. Background technique [0002] For a long time in the research and development process of the motor, reducing the noise of the motor during work has always been the focus and difficulty of research and development. Especially for motors used in furniture and household appliances, customer motors are very concerned about the decibels of the sound emitted during work. At present, in addition to the rated power, rated torque and other indicators, the decibel number of the motor's working noise has become one of the indicators to measure the performance of the motor. [0003] To reduce the noise of the motor, noise reduction devices can be used, such as noise reduction covers, noise reduction shells, etc. However, this method can reduce...

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): H02K23/26H02K23/44
CPCH02K23/26H02K23/44H02K2213/03
Inventor 雷诗琼
Owner 深圳市昱森机电有限公司