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Low-noise miniature direct-current motor

A DC motor, low-noise technology, used in electrical components, electromechanical devices, electrical components, etc., can solve the problems of weakening the disturbance signal, can not be eliminated, etc., to reduce costs, reduce noise, reduce wear and tear

Active Publication Date: 2020-11-13
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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  • Low-noise miniature direct-current motor
  • Low-noise miniature direct-current 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, and particularly relates to a miniature direct-current motor capable of effectively reducing noise and electromagnetic interference and a manufacturing method of the miniature direct-current motor. The low-electromagnetic-noise miniature direct-current motor comprises a motor device, a filtering device and a shielding ring device. The motor device comprises a stator assembly, a rotor assembly and a cover plate assembly. The filtering device comprises a network consisting of aninductor and a capacitor, is arranged at the lead end of the cover plate, and prevents an electromagnetic disturbance signal from being conducted and input into the motor; the shielding ring device is an isolation ring formed by stamping a galvanized steel sheet and is wrapped on the casing. The miniature direct-current motor, the filtering device and the shielding device are combined for use, noise caused by disturbance signals conducted and input to the motor by a power supply is eliminated or weakened, an internal magnetic field is prevented from diffusing outwards or an external magneticfield is prevented from entering, and interference is reduced.

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 Applications(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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