CN213087093U - Diffuser - Google Patents

Abstract

The utility model relates to a diffuser, the diffusion surface is an outward convex curved surface structure with at least one bulge peak, and the bulge peak is arranged at the 2/3-9/10 position of the diffusion surface; the support frame comprises a front surface and a back surface, and the diffusion surface is fixedly connected to the front surface of the support frame; the diffusion surface is a seamless solid plate, a strip seam sound-absorbing plate surface or a perforated sound-absorbing plate surface; the diffuser provided by the utility model has at least one bulge peak on the diffusion surface without changing the overall outward convex shape of the outward convex curved surface, thereby ensuring that the diffusion surface can generate different decoration styles on the premise that the full-band sound wave has the sound diffusion effect; the location of the bump peaks at 2/3-9/10 of the diffuser surface means that the bump peaks are concentrated on one side of the diffuser surface and the side without bump peaks is located below when the diffuser is suspended, thus reducing the footprint of the use space.

Description

Diffuser

Technical Field

The utility model belongs to acoustics functional structure field, concretely relates to diffuser.

Background

The diffuser is one of sound absorption and diffusion facilities, is frequently encountered in life, and particularly cannot be supported in occasions with high requirements on sound fields, such as cinemas and concert halls.

The diffuser comprises a convex curve for sound diffusion, which is a great waste for indoor environments where space is at a premium.

Meanwhile, the larger the size of the diffuser, the higher the probability of resonance generation, and the influence on the use effect. And the convex curved surface is generally a seamless solid panel or a perforated sound-absorbing board, and the convex curved surface only has a sound diffusion effect or only has a trace sound-absorbing effect.

SUMMERY OF THE UTILITY MODEL

The object of the present invention is to overcome the technical problems in the prior art and to provide a diffuser.

In order to achieve the technical purpose, the utility model adopts the following technical scheme:

a diffuser comprising:

the diffusion surface is of an outward convex curved surface structure with at least one bulge peak, and the bulge peak is arranged at the position 2/3-9/10 of the diffusion surface;

the support frame comprises a front surface and a back surface, and the diffusion surface is fixedly connected to the front surface of the support frame;

the diffusion surface is a seamless solid plate, a strip seam sound absorption plate surface or a perforated sound absorption plate surface. When the diffusing surface is a seamless solid plate, the diffusing surface has only a sound diffusing effect. When the diffusing surface is a slit sound absorbing plate surface or a perforated sound absorbing plate surface, the diffusing surface can have an excellent sound wave absorbing effect (particularly for low frequency sound waves) in addition to the sound diffusing effect.

Furthermore, the support frame comprises an outer frame and at least one curved keel, and the curved keel is fixed on the outer frame; the curved keel forms the front of the support frame.

Further, the support frame is the rectangle framework, and the diffusion face is the crack sound absorption face, and the crack sound absorption face includes a plurality of laths, lath lug connection in the front of rectangle framework.

Furthermore, the support frame comprises a first side sealing plate, a second side sealing plate and a plurality of skeleton rods; first side shrouding sets up with second side shrouding relatively, and skeleton pole fixed connection is between first side shrouding and second side shrouding.

Furthermore, the support frame still includes at least one well plywood, and well plywood sets up between first side shrouding and second side shrouding, and well plywood, first side shrouding and second side shrouding support the diffusion face jointly.

Furthermore, the middle layer plate divides the space between the first side sealing plate and the second side sealing plate at unequal intervals.

Furthermore, a sound absorbing piece is arranged in the diffuser.

Furthermore, the diffuser also comprises a back plate which is connected to the back surface of the support frame.

Furthermore, the diffusion surface is made of fireproof materials, and the support frame is made of fireproof materials.

Furthermore, four corners of the back of the support frame are provided with mounting holes.

The diffuser provided by the utility model has at least one bulge peak on the diffusion surface without changing the overall outward convex shape of the outward convex curved surface, thereby ensuring that the diffusion surface can generate different decoration styles on the premise that the full-band sound wave has the sound diffusion effect; the location of the bump peaks at 2/3-9/10 of the diffuser surface means that the bump peaks are concentrated on one side of the diffuser surface and the side without bump peaks is located below when the diffuser is suspended, thus reducing the footprint of the use space.

Drawings

Fig. 1 is a schematic front view of a diffuser according to embodiment 1 of the present invention;

fig. 2 is a schematic view showing several optional curved surface trends of the diffusion surface of embodiment 1 of the present invention;

fig. 3 is a schematic view of the back of a diffuser according to embodiment 2 of the present invention;

fig. 4 is a schematic view of the back of the supporting frame in embodiment 2 of the present invention;

fig. 5 shows a fixing manner of the diffusion surface on the curved keel according to embodiment 2 of the present invention;

fig. 6 shows another fixing manner of the diffusion surface on the curved keel according to embodiment 2 of the invention;

fig. 7 is a schematic view of the back of a diffuser according to embodiment 3 of the present invention;

fig. 8 is a schematic front view of a support frame according to embodiment 4 of the present invention;

reference numerals: the diffusion body (100), the diffusion surface (110), the support frame (120), the outer frame (121), the curved keel (122), the first side sealing plate (123), the second side sealing plate (124), the framework rod (125), the middle plate (126) and the batten keel (200).

Detailed Description

The technical solution of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Example 1

As shown in fig. 1, a diffuser includes:

the diffusion surface 110, the diffusion surface 110 is a convex curved surface structure with two bulge peaks, and the bulge peaks are arranged at the 2/3 and 7/8 positions of the diffusion surface 110;

the support frame 120, the support frame 120 includes a front surface and a back surface, and the diffusion surface 110 is fixedly connected to the front surface of the support frame 120;

wherein, the diffusing surface 110 is a slit sound-absorbing plate surface.

In one embodiment, the diffuser 100 may be wall-mounted or hung. The support 120 serves as a structural support for the diffuser 110 and also as a skeleton structure for the diffuser 100 as a whole, and can hold the diffuser 110 and adapt to the curvature of the diffuser 110. The convex curvature of the diffuser 110 provides sound diffusion. In practice, setting the length of the diffusing surface 110 to 2m or more can produce a sound diffusing effect of good quality in the frequency range of sound waves that can be perceived by human ears. The diffusion surface 110 is provided with more than one bulge peak without changing the overall convex shape of the convex curved surface, thereby ensuring that the diffusion surface can generate different decoration styles on the premise of having sound diffusion effect on full-band sound waves. The bulge peaks are concentrated on one side of the diffusion surface 110, and when the diffuser 100 is hung, the side without bulge peaks is located below, so that the occupied space is reduced. The diffusing surface 110 is a slit sound-absorbing plate surface, and the diffusing surface 110 has sound diffusing effect and also has excellent low-frequency sound absorbing effect.

Fig. 2 is a schematic diagram showing the trend of the curved surfaces of several other diffusion surfaces 110.

Example 2:

as shown in fig. 3-6, the diffuser includes a diffusing surface 110 and a supporting frame 120, the diffusing surface 110 is a convex curved surface structure having two bulge peaks, and the bulge peaks are disposed at positions 2/3 and 7/8 of the diffusing surface 110; the support frame 120 includes a front surface and a back surface, and the diffusion surface 110 is fixedly connected to the front surface of the support frame 120. Wherein, the diffusing surface 110 is a slit sound-absorbing plate surface.

The support frame 120 comprises an outer frame 121 and two curved keels 122, and the curved keels 122 are fixed on the outer frame 121; the curvilinear keel 122 forms the front face of the support bracket 120.

The curved keel 122 serves as a fixed foundation for the diffuser surface 110, saving material and simplifying installation.

In particular embodiments, as shown in fig. 5, the diffuser surface 110 may be secured directly to the curved keel 122; if the curved keel 122 is provided with the bayonets, the slit sound-absorbing board surface is directly clamped on the curved keel 122.

In particular embodiments, as shown in fig. 6, the attachment of the diffuser surface 110 to the curved furring channels 122 may also incorporate a batten keel 200, the batten keel 200 being attached to the curved furring channels 122, and the slotted acoustical panel being mounted to the batten keel 200.

Example 3:

as shown in fig. 7, the supporting frame 120 is a rectangular frame, the diffusing surface 110 is a slit sound absorbing plate, and the slit sound absorbing plate includes a plurality of slats directly connected to the front surface of the rectangular frame. In the concrete implementation, the bayonets are arranged on the two sides of the front surface of the rectangular frame body, and the strip seam sound absorption plate surface is directly clamped on the rectangular frame body.

The rectangular frame structure is simplified, but if the diffuser 100 has a large width, the structural stability of the diffuser 100 as a whole is weak if the rectangular frame structure is adopted.

Example 4:

as shown in fig. 8, a diffuser includes a diffusing surface 110 and a supporting frame 120, the diffusing surface 110 is a convex curved surface structure having two bulge peaks, and the bulge peaks are arranged at positions 2/3 and 7/8 of the diffusing surface 110; the support frame 120 includes a front surface and a back surface, and the diffusion surface 110 is fixedly connected to the front surface of the support frame 120. Wherein, the diffusing surface 110 is a slit sound-absorbing plate surface.

The support frame 120 comprises a first side sealing plate 123, a second side sealing plate 124 and a plurality of skeleton bars 125; the first side sealing plate 123 and the second side sealing plate 124 are disposed opposite to each other, and the frame rod 125 is fixedly connected between the first side sealing plate 123 and the second side sealing plate 124.

The combination of the first side sealing plate 123, the second side sealing plate 124 and the plurality of frame bars 125 increases the material consumption, but increases the strength of the overall structure, and the plate-shaped and rod-shaped structures can be conveniently processed using wood or synthetic wood.

The support frame 120 further includes two middle plates 126, the middle plate 126 is disposed between the first side cover plate 123 and the second side cover plate 124, and the middle plate 126, the first side cover plate 123 and the second side cover plate 124 support the diffusion surface 110 together.

For a wider diffuser face 110, the addition of the midplane 126 makes the diffuser 100 more structurally robust overall.

The middle plate 126 divides the space between the first side cover plate 123 and the second side cover plate 124 at unequal intervals. The middle layer plate 126 divides the supporting frame 120 at unequal intervals, and reduces the generation of resonance effect on the supporting frame 120. In one embodiment, the attachment of the diffuser surface 110 to the mid-deck 126 may also incorporate a batten keel 200, the batten keel 200 being attached to the front face of the mid-deck 126, the stitched acoustical panel being mounted to the batten keel 200.

Example 5:

example 5 differs from example 4 in that a sound absorbing member (not shown) is provided in the diffuser 100.

The sound waves transmitted into the diffuser 100 are absorbed and dissipated by the sound absorbing member, so that the diffuser 100 has a sound absorbing effect in addition to the sound diffusing effect. The sound absorbing piece is made of sound absorbing materials such as sound absorbing cotton.

Example 6:

embodiment 6 differs from embodiment 1 in that the diffuser 100 further includes a back plate (not shown) connected to the back surface of the support frame 120.

Due to the presence of the back plate, only a small portion of the sound waves transmitted into the diffuser 100 are re-transmitted from the diffuser 100, especially if a sound absorbing member is provided in the diffuser 100.

Example 7:

embodiment 7 differs from embodiment 1 in that the diffusion surface 110 is made of a fireproof material, and the support frame 120 is made of a fireproof material (e.g., fireproof aluminum).

If the sound absorbing member is disposed in the diffuser 100, the sound absorbing member is also made of a fireproof material (e.g., fireproof sound absorbing cotton), so that the diffuser 100 can achieve the corresponding fireproof standard.

Example 8:

embodiment 8 differs from embodiment 4 in that mounting holes are provided at four corners of the back surface of the support frame 120. The mounting holes are disposed on the first side sealing plate 123 and the second side sealing plate 124, which facilitates hanging or hanging of the diffuser.

The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a," "an," or "the" and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalents, and does not exclude other elements or items. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

The embodiment is only a single implementation manner of the present invention, and for those skilled in the art, other embodiments can be obtained according to the attached drawings without any creative effort, and are also within the protection scope of the present invention.

Claims (10)

1. A diffuser, characterized in that the diffuser comprises:

a diffusing surface having an outwardly convex curved surface structure with at least one bulge peak disposed at a position 2/3-9/10 of the diffusing surface;

the support frame comprises a front surface and a back surface, and the diffusion surface is fixedly connected to the front surface of the support frame;

wherein, the diffusion surface is a seamless solid plate, a strip seam sound absorption plate surface or a perforated sound absorption plate surface.

2. The diffuser of claim 1 wherein said support frame includes an outer frame and at least one curvilinear runner secured to said outer frame; the curved keel forms the front face of the support frame.

3. The diffuser of claim 1 wherein the support frame is a rectangular frame, the diffuser surface is a slotted acoustical panel comprising a plurality of slats directly connected to a front surface of the rectangular frame.

4. The diffuser of claim 1 wherein said support frame comprises a first side closure plate, a second side closure plate and a plurality of skeletal bars; the first side shrouding with the second side shrouding sets up relatively, skeleton pole fixed connection in first side shrouding with between the second side shrouding.

5. The diffuser of claim 4 wherein the support frame further comprises at least one intermediate plate disposed between the first and second side cover plates, the intermediate plate, the first side cover plate and the second side cover plate together supporting a diffuser surface.

6. The diffuser of claim 5 wherein said intermediate plate divides the space between said first and second side cover plates at unequal intervals.

7. The diffuser of claim 1 wherein a sound absorbing member is provided within the diffuser.

8. The diffuser of any one of claims 1-7 further comprising a backing plate attached to the back side of the support frame.

9. The diffuser of any one of claims 1 to 7, wherein the diffuser surface is of a fire resistant material and the support is of a fire resistant material.

10. The diffuser of any one of claims 1-7, wherein four corners of the back surface of the support frame are provided with mounting holes.

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