CN201172930Y - Vertical stripe low frequency reflector - Google Patents

Abstract

The utility model relates to the technical field of sound parts, in particular to a vertical bar low frequency reflector of wall surface acoustic processing, which is mainly composed of a frame, inserting plates and wood chips. The vertical bar low frequency reflector is characterized in that multiple pieces of inserting plates which are parallel mutually are installed in the frame, a hollow cavity is formed between neighboring inserting plates or between the inserting plate and a side panel, the wood chips with unequal depths are installed in each hollow cavity, the vertical bar low frequency reflector has the beneficial effects of novel and simple structure and has the scattering effect, the long time work comfortableness of sound listeners is guaranteed, the auditory fatigue is avoided, sound can be effectively controlled, sound focus is avoided, the speech definition is improved, and furthermore the vertical bar low frequency reflector has simple manufacture, low cost and good performance, and is worthy of being extended and applied.

Description

Vertical bar bass reflex device

[technical field]

The utility model relates to the sound part technical field, specifically a kind of vertical bar bass reflex device 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 0 reverberation time of certain weak point,, 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 vertical bar bass reflex device of wall Acoustic treatment is provided, and has dispersion effect.

The utility model adopts following technical proposals: a kind of vertical bar bass reflex device, mainly form by framework, plate and wood chip, it is characterized in that: the some plates that are parallel to each other are equipped with in described framework inside, form a cavity between the adjacent plate or between plate and the side panel, the wood chip that the depth does not wait is housed in each cavity.

Described wood chip become level, vertical, have constant slope, stairstepping or waveform or above-mentioned combination is arranged in the cavity, promptly between the plate or between plate and the side panel.

Operating principle of the present utility model: when the hard material surface of sound wave arrival diffuser, sound waves of different frequencies will reflect to different directions, optimize the uniformity of sound.

The beneficial effects of the utility model, novel structure, simple has dispersion effect, guarantees the comfortableness that the auditor works long hours, and avoids auditory fatigue, can effectively control 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 a structural representation of the present utility model;

Fig. 2 is the sectional drawing of Fig. 1.

Referring to Fig. 1, Fig. 2,1 is framework, and 2 is plate, and 3 is cavity, and 4 is wood chip.

[specific embodiment]

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

Referring to Fig. 1, Fig. 2, a kind of vertical bar bass reflex device, mainly form by framework 1, plate 2 and wood chip 4, the some plates that are parallel to each other 2 are equipped with in described framework 1 inside, form a cavity 3 between the adjacent plate or between plate and the side panel, the wood chip 4 that the depth does not wait is housed in each cavity, and wood chip is horizontally set between the plate for 4 one-tenth, and framework 1 can be the material with reflecting effect of any hard.

In addition because the height of the depth of cavity decision absorption frequency, wood chip of the present utility model can also be made vertically, slope shape, stairstepping or waveform or above-mentioned combination is arranged between the plate or plate and side panel between, to satisfy different needs.

Manufacture craft of the present utility model: earlier the some blocks of plates in centre are inserted on the upper and lower side frame of framework 1; Be respectively charged into the wood chip that the depth does not wait in the cavity 3 that between plate and side panel or plate and plate, forms.

Claims (2)

1. vertical bar bass reflex device, mainly form by framework, plate and wood chip, it is characterized in that: the some plates that are parallel to each other are equipped with in described framework inside, form a cavity between the adjacent plate or between plate and the side panel, and the wood chip that the depth does not wait is housed in each cavity.

2. vertical bar bass reflex device as claimed in claim 1 is characterized in that: described wood chip become level, vertical, have constant slope, stairstepping or waveform or above-mentioned combination is arranged in the cavity.

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