CN203882607U

CN203882607U - Silencer

Info

Publication number: CN203882607U
Application number: CN201420164341.8U
Authority: CN
Inventors: 葛著青
Original assignee: China University of Petroleum East China
Current assignee: China University of Petroleum East China
Priority date: 2014-04-05
Filing date: 2014-04-05
Publication date: 2014-10-15
Anticipated expiration: 2024-04-05

Abstract

The utility model relates to a silencer. The silencer comprises a receiver, a sound inverter, a sound amplifier, a sound emitter, a battery and a switch; the receiver is used for receiving noise in an environment, the sound inverter is used for inverting the received noise, the sound amplifier is used for amplifying the received noise, the sound emitter is used for emitting and receiving a sound wave the wave length of which is the same as that of the noise, the battery provides electric energy to other parts through wires, and the switch is used for controlling the power supply of the battery. According to the utility model, the noise is eliminated through sounds, single-frequency noise or noises with approximate frequencies emitted by machines and the like are reduced and even eliminated in the propagation process of sounds, and therefore a relatively-quiet environment benefit for work or rest can be created.

Description

A kind of sound suppressor

Technical field

The utility model relates to a kind of sound suppressor, is specifically related to one way of life and mechanical environment subrange sound suppressor, belongs to daily necessities field.

Background technology

The sound suppressor existing is in the market all to reach noise elimination object by the mode of Passive intake sound mostly, and range of application space is comparatively narrow and small, and needs special acoustic absorbant and mounting structure.

Utility model content

The utility model is for the problems referred to above, a kind of sound suppressor is provided, the noise single or that frequency is approaching that the utility model can be launched machine etc. by eliminating the noise with sound weakens even in the communication process of sound to be eliminated, thereby can build a relative quiet environment that is more conducive to work or rest.

The technical solution adopted in the utility model is as follows:

A kind of sound suppressor, comprise receiver, sound phase inverter, sound expander, acoustic emitter, electric battery, switch, described receiver is used for noise anti-phase and that amplification receives for the noise of environment of accepting, described sound phase inverter and sound expander, described acoustic emitter is for launching and the noise co-wavelength sound wave receiving, described electric battery provides electric energy by wire for other original papers, and described switch is for controlling the power supply of battery.

On the basis of technique scheme, also comprise sound frequency limiting filter device, after described sound frequency limiting filter device is placed in sound intensifier.

On the basis of technique scheme, also comprise adjustable whirligig, described adjustable whirligig is used for regulating sound receiver and sound expander.

The utlity model has following advantage:

1) in the communication process of sound, initiatively weaken or eliminate noise;

2) simple in structure, can be placed in the place of the approaching noise of the unifrequency such as lathe, office or frequency, position is flexible;

3) take up room littlely, be easy to carry, can put as required (by millwork) whenever and wherever possible, and noise elimination scope is large;

4) selective to the sound of eliminating, can retain necessary sound and eliminate unnecessary sound.5) without the material of special absorption sound, save space, simplified mechanical noise elimination structure.

Brief description of the drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the structural representation that the utility model contains sound frequency limiting filter device.

1 receiver, 2 sound phase inverters, 3 sound expanders, 4 acoustic emitters, 5 electric battery, 6 switches, 7 sound frequency limiting filter devices.

Embodiment

Below in conjunction with accompanying drawing and example, the utility model is described in further detail:

As depicted in figs. 1 and 2, a kind of sound suppressor, comprise receiver 1, sound phase inverter 2, sound expander 3, acoustic emitter 4, electric battery 5, switch 6, described receiver 1 is for the noise of environment of accepting, described sound phase inverter 2 and sound expander 3 are for noise anti-phase and that amplification receives, the noise co-wavelength sound wave of described acoustic emitter 4 for launching and receive, described electric battery 5 provides electric energy by wire for other original papers, described switch 6 is for controlling the power supply of battery, the utility model also comprises sound frequency limiting filter device 7, after described sound frequency limiting filter device 7 is placed in sound intensifier 3.

When the utility model uses, cross with the eliminates the noise noise single or that frequency is approaching that can launch machine etc. of sound and in the communication process of sound, weaken even elimination.

With way of example, the utility model is illustrated above, but the utility model is not limited to above-mentioned specific embodiment, all any changes of doing based on the utility model or modification all belong to the claimed scope of the utility model.

Claims

1. a sound suppressor, it is characterized in that, comprise receiver, sound phase inverter, sound expander, acoustic emitter, electric battery, switch, described receiver is used for noise anti-phase and that amplification receives for the noise of environment of accepting, described sound phase inverter and sound expander, described acoustic emitter is for launching and the noise co-wavelength sound wave receiving, described electric battery provides electric energy by wire for other original papers, and described switch is for controlling the power supply of battery.

2. a kind of sound suppressor according to claim 1, is characterized in that, also comprises sound frequency limiting filter device, after described sound frequency limiting filter device is placed in sound intensifier.

3. a kind of sound suppressor according to claim 1, is characterized in that, also comprises adjustable whirligig, and described adjustable whirligig is used for regulating sound receiver and sound expander.