CN201172933Y

CN201172933Y - Combined sound absorbers

Info

Publication number: CN201172933Y
Application number: CNU2008200561561U
Authority: CN
Inventors: 邹四维
Original assignee: Enpei Audio Equipment (Shanghai) Co Ltd
Current assignee: Enpei Audio Equipment (Shanghai) Co Ltd
Priority date: 2008-03-12
Filing date: 2008-03-12
Publication date: 2008-12-31
Anticipated expiration: 2018-03-12

Abstract

The utility model relates to the technical field of sound parts, in particular to a combined sound absorption body of wall surface acoustic processing, which comprises three single sound absorption bodies, wherein each sound absorption body is mainly composed of angle iron, felted wool and porous sound absorbing materials. The combined sound absorption body is characterized in that the shape of the outer surface of the sound absorption body I is an arc shape, the outer shape of the sound absorption body II is a multilateral body shape, the sound absorption body III is composed of a plurality of small multilateral body shaped sound absorption bodies, the combined sound absorption body has the beneficial effects of novel and simple structure and has sound absorbing effect, the long time work comfortableness of sound listeners is guaranteed, the auditory fatigue is avoided, sound can be effectively controlled, harmful strong reflected sound is eliminated, sound focus is avoided, the speech definition is improved, and furthermore the combined sound absorption body has simple manufacture, low cost and good performance, and is worthy of being extended and applied.

Description

The combined type sound absorber

[technical field]

The utility model relates to the sound part technical field, specifically a kind of combined type sound absorber of wall Acoustic treatment.

[background technology]

Drill in the room of the class hall and sound recording and playback in sight, the indoor tone quality design is absolutely necessary, and various Acoustic treatment material is combined in the interior decoration with structure.The sound absorption of indoor wall can be eliminated harmful strong reflection sound, avoids sound focus, reduces the room reverberation time, reduces the reverberation sound level, be improved speech articulation.In common interior decoration, sound absorption is to be provided by different walls with scattering, fits up the scattering wall that is adopted at present and also lacks sound absorbing capabilities usually, although the reflected sound diffusion is propagated, does not reduce reverberation acoustic energy, so the uncontrollable reverberation time.

The room of most sound recording and playback such as recording room, control room, audiovisual studio, home theater etc., room-sized is smaller usually, but very high to the requirement of tonequality.Promptly require in listening area last time the sound level of reflected sound will be, but need certain of short duration reverberation time,, avoid auditory fatigue with the comfortableness that guarantees that the auditor works long hours far below the direct sound sound level.So can not adopt the full sound absorption design as sound attenuation room, and should make the sound absorption and the scattering phase combination of wall.But in this class cubicle,,, can increase the difficulty of design, and be unfavorable for effective control of sound if sound absorption is provided by different walls respectively with scattering because the wall area is limited.

[summary of the invention]

Task of the present utility model overcomes the deficiencies in the prior art exactly, and a kind of combined type sound absorber is provided, and has acoustically effective.

The utility model adopts following technical proposals: a kind of combined type sound absorber, comprise three independent sound absorbers, each sound absorber mainly is made up of angle bar, wool felt and porous absorption material, it is characterized in that: described sound absorber I external surface be shaped as arc, sound absorber II profile is the polygon bodily form, and sound absorber III is combined by several little polygon bodily form sound absorbers.

Described sound absorber II profile is a cuboid, and sound absorber III is combined by several little trapezoidal sound absorbers.

Operating principle of the present utility model: when the sound absorption material of sound wave by the Acoustic treatment sound absorber, can go deep into material internal, acoustic energy is converted into heat energy, reach good acoustically effective with material generation rubbing action.

The beneficial effects of the utility model, novel structure, simple has acoustically effective, guarantees the comfortableness that the auditor works long hours, and avoids auditory fatigue, can effectively control sound, eliminates harmful strong reflection sound, avoids sound focus, improves speech articulation; In addition, the utility model is made simple, and cost is low, and performance is good, is worthy of popularization.

[description of drawings]

Fig. 1 is the structural representation of sound absorber I of the present utility model;

Fig. 2 is the A-A structural representation of Fig. 1;

Fig. 3 is the structural representation of sound absorber II of the present utility model;

Fig. 4 is the A-A structural representation of Fig. 3;

Fig. 5 is the structural representation of sound absorber III of the present utility model;

Fig. 6 is the A-A structural representation of Fig. 5.

Referring to Fig. 1 to Fig. 6,1 is angle bar, and 2 is glass fiber, and 3 is wool felt, and 21 is angle bar, and 22 is glass fiber, and 23 is wool felt, and 31 is glass fiber, and 32 is angle bar, and 33 is wool felt.

[specific embodiment]

Below in conjunction with the drawings and specific embodiments the utility model is described in detail:

Referring to Fig. 1 to Fig. 6, a kind of combined type sound absorber, comprise three independent sound absorber I, sound absorber II and sound absorber III, each sound absorber mainly is made up of angle bar, wool felt and glass fiber material, described sound absorber I external surface be shaped as arc, sound absorber II profile is a cuboid, and sound absorber III is combined by several little trapezoidal sound absorbers.

Simpler production process of the present utility model:

1. cut into cuboid, several prismatoids, circular arc one section after earlier glass fiber being fastened with glue;

2. then with one section external surface that is packaged in glass fiber with the entrant sound ornament of cuboid, several prismatoids, circular arc;

3. be fixed in desired location with fastening devices.

Claims

1. combined type sound absorber, comprise three independent sound absorbers, each sound absorber mainly is made up of angle bar, wool felt and porous absorption material, it is characterized in that: described sound absorber I external surface be shaped as arc, sound absorber II profile is the polygon bodily form, and sound absorber III is combined by several little polygon bodily form sound absorbers.

2. combined type sound absorber as claimed in claim 1 is characterized in that: described sound absorber II profile is a cuboid, and sound absorber III is combined by several little trapezoidal sound absorbers.