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A Low Noise Miniature DC Motor

A DC motor, low-noise technology, applied in the direction of electromechanical devices, electrical components, electric components, etc., can solve the problem of inability to eliminate or weaken the disturbance signal, and achieve the effect of noise reduction, cost reduction, and good magnetic permeability

Active Publication Date: 2021-08-31
湖北升玛电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this solution is similar to the micro DC motor mentioned above. It can eliminate the spark caused by the back electromotive force, but it cannot eliminate or weaken the disturbance signal input to the motor from the power supply.

Method used

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  • A Low Noise Miniature DC Motor
  • A Low Noise Miniature DC Motor
  • A Low Noise Miniature DC Motor

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Embodiment Construction

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0038] In describing the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientations or positional relationships indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention, rather than indicating or...

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Abstract

The invention discloses a low-electromagnetic-noise miniature direct-current motor and a manufacturing method thereof, in particular to a miniature direct-current motor capable of effectively reducing noise and electromagnetic interference and a manufacturing method thereof. The low electromagnetic noise miniature DC motor includes a motor device, a filter device and a shielding ring device. The motor device includes a stator assembly, a rotor assembly, and a cover plate assembly; the filter device includes a network composed of inductors and capacitors, which are installed at the lead end of the cover plate to prevent electromagnetic disturbance signals from being transmitted to the inside of the motor; the shielding ring device is stamped with galvanized steel The formed isolation ring is wrapped on the casing. The present invention combines a micro DC motor with a filtering device and a shielding device to eliminate or weaken the noise caused by the disturbance signal input from the power supply to the motor, prevent the internal magnetic field from spreading outward, or the external magnetic field enter, and reduce interference.

Description

technical field [0001] The invention relates to a micro direct current motor, in particular to a low noise micro direct current motor. Background technique [0002] Noise is harmful to people's hearing and eyesight, harmful to people's cardiovascular system, affecting people's nervous system, making people irritable, irritable, causing increased adrenal gland secretion, rapid heartbeat, and increased blood pressure, which can easily lead to heart attacks, affect sleep and cause dizziness, Neurasthenia symptoms such as headache, insomnia, dreaminess, memory loss, and inability to concentrate, and digestive tract symptoms such as nausea, vomiting, stomach pain, abdominal distension, and sluggish appetite. Noise is one of the three major public hazards that pollute the environment in modern society. In order to protect people's health, the International Organization for Standardization (ISO) has stipulated the standards of people's allowable noise. Motors are widely used in h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K11/02H02K5/22
CPCH02K5/225H02K11/02
Inventor 柯卓英陈平陈定芳
Owner 湖北升玛电子有限公司
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