Magnetic suspension electric fan with noise monitoring function

Abstract

The magnetic levitation electric fan with noise monitoring function disclosed by the present invention includes a base provided with a power supply and a switch, a DC motor, fan blades, a repulsion sleeve, a magnetosphere sleeve and a noise monitor. The noise monitor is arranged on the base and is connected with the base. The power supply is connected, the magnetic layer sleeve is coaxially sleeved on the DC motor, the outer surface of the magnetic layer sleeve is covered with permanent magnets, the repulsion sleeve is set on the outside of the magnetic layer sleeve, and the inner wall of the repulsion sleeve is laid with permanent magnets and is connected to the outer surface of the magnetic layer sleeve. The poles of the permanent magnets with the same name are opposite to each other. The invention is simple in structure, easy to use and easy to carry, and utilizes the permanent magnet magnetic levitation structure to reduce the vibration noise in the working of the motor, and at the same time monitor the noise intensity in the environment in real time, which improves the comfort of use and is beneficial to improve the quality of life.

Description

technical field [0001] The invention relates to a fan, in particular to a magnetic levitation electric fan with noise monitoring function. Background technique [0002] With the development of modern industry, environmental pollution is also produced. Noise pollution is a kind of environmental pollution, which has become a great harm to human beings. Noise pollution, water pollution, air pollution, and solid waste pollution are regarded as four major environmental problems worldwide. Physically, noise is the sound produced when the sound source vibrates irregularly. From the perspective of environmental protection, all sounds that affect people's normal study, life, rest, etc. are called noise. Noise pollution is ubiquitous in modern urban life. The monitoring of noise pollution is not only of great significance to the monitoring of environmental quality, but also to the quality of people's daily life. [0003] In order to resist the heat of summer, fans have existed since...

AI Technical Summary

Problems solved by technology

There is a kind of small-sized electric fan on the market now according to the visor electric fan on the forehead of the cap, blowing the face, this visor electric fan has the following shortcoming: 1, it is inconvenient in situations such as work, study and leisure Use; 2. The direction of the electric fan cannot be adjusted, and the wind force of the fan is too small to blow air on the chest and belly of the human body with high heat generation; 3. The wind will blow to the eyes, which is not conducive to study and work; 4. The motor is installed on the The visor is heavy and vibrates, which makes people feel uncomfortable and affects work and study; 5. The battery capacity is too small, the working time of the motor is short, and the visor fan is very unsightly

At the same time, it has a large noise, which not only makes people irritable, affects the mood, but also affects the quality of life

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