CN219109179U

CN219109179U - Sound insulation curtain based on local thin film resonance technology

Info

Publication number: CN219109179U
Application number: CN202320012565.6U
Authority: CN
Inventors: 党丽霞; 卢庆林; 陈梦媛; 罗元易; 冯振超
Original assignee: Xiamen Junmao Real Estate Development Co ltd; Xiamen Quietime Co Ltd
Current assignee: Xiamen Junmao Real Estate Development Co ltd; Xiamen Quietime Co Ltd
Priority date: 2023-01-04
Filing date: 2023-01-04
Publication date: 2023-06-02
Anticipated expiration: 2033-01-04

Abstract

The utility model relates to the technical field of curtains, in particular to a sound insulation curtain based on a local thin film resonance technology, which comprises a first curtain cloth and a second curtain cloth with the same size, wherein a plurality of local resonance units are arranged between the first curtain cloth and the second curtain cloth to form the sound insulation curtain; the light curtain can effectively block noise, the blocking frequency can be changed by changing the natural frequency of the local thin film resonance unit in the light curtain, and the light curtain can be matched for use in different application scenes to achieve different noise reduction purposes.

Description

Sound insulation curtain based on local thin film resonance technology

Technical Field

The utility model relates to the technical field of curtains, in particular to a sound insulation curtain based on a local thin film resonance technology.

Background

The window is the necessary structure of building, and the (window) curtain is usually with the supporting use of window, and present (window) curtain mainly takes the cloth matter, mainly plays the shading effect, does not possess sound insulation or heat preservation effect, and the window needs to exert the printing opacity effect, consequently adopts glass material more, glass material's glass has the better cavity glass of sound insulation at present. However, under some conditions requiring ventilation, noise pollution is caused when the window is opened for ventilation. Especially in the south area, in autumn and winter, the temperature is cool and comfortable, but often the windows have to be closed because of the trouble of traffic noise after opening the windows, construction noise of nearby construction sites and the like, so that the indoor environment is clumsy, and people feel uncomfortable deeply. It is therefore necessary to design an effective sound-insulating window covering;

the emergence and research of the local thin film resonance technology opens up a new field for the research of sound waves; the local thin film resonance technology mainly aims at enabling the thin film assembly to resonate through artificial combination design so as to consume energy and achieve the function of sound insulation, so that the local thin film resonance technology can be introduced into a curtain, the curtain has a certain sound insulation function, people can be satisfied with windowing ventilation and noise pollution isolation, and a quiet living environment is maintained. Therefore, we propose a sound insulation curtain based on a local thin film resonance technology to solve the above problems.

Disclosure of Invention

The utility model aims to provide a sound insulation curtain based on a local thin film resonance technology, which is introduced into the curtain, and achieves a sound insulation function by combining cloth with the local thin film resonance technology, so that the problem of poor sound insulation performance of the cloth is solved, the sound insulation effect of the curtain is improved, and the problem of noise pollution caused by opening a window for ventilation is solved.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a sound insulation curtain based on a local thin film resonance technology comprises a first curtain cloth and a second curtain cloth which are identical in size, wherein a plurality of local resonance units are arranged between the first curtain cloth and the second curtain cloth to form the sound insulation curtain.

Preferably, the plurality of local resonance units are arranged between the first curtain cloth and the second curtain cloth in a sewing or adhesive fixing mode.

Preferably, the local resonance unit comprises two frames with hollowed-out middle parts, a layer of film is clamped between the two frames, and a shell plate is arranged on one side surface of the two frames, which is far away from each other.

Preferably, the frame and the film, and the shell plate and the frame are fixed by gluing or clamping with bolts.

Preferably, the short side size of the hollow inside the frame is L1, the long side size of the hollow inside the frame is L2, and L2 is more than or equal to 3L1.

Preferably, the curtain rod support piece is used for supporting the curtain rod, and the sound insulation curtain is hung outside the curtain rod and can be freely contracted.

Compared with the prior art, the utility model has the beneficial effects that:

the utility model introduces the local thin film resonance technology into the curtain structure, and breaks the limitation that the conventional curtain cannot insulate sound; the light curtain can effectively block noise, the blocking frequency can be changed by changing the natural frequency of the local thin film resonance unit in the light curtain, and the light curtain can be matched for use in different application scenes to achieve different noise reduction purposes.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view showing an exploded structure of a soundproof curtain according to the present utility model;

FIG. 2 is a schematic diagram of an exploded structure of a local resonance unit according to the present utility model;

FIG. 3 is a schematic cross-sectional view of a local resonance unit according to the present utility model;

FIG. 4 is a schematic top view of a frame of a local resonance unit according to the present utility model;

fig. 5 is a schematic structural view of the sound insulation window covering of the present utility model after application.

In the drawings, the list of components represented by the various numbers is as follows:

1. sound insulation curtain; 11. a first curtain cloth; 12. a second curtain cloth; 13. a local resonance unit; 131. a frame; 132. a film; 133. a housing plate; 2. curtain rod supports; 3. curtain rods.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the present utility model provides a technical solution:

please refer to fig. 1 and 5: a sound insulation curtain based on a local thin film resonance technology comprises a sound insulation curtain 1, a curtain rod supporting piece 2 and a curtain rod 3, wherein the curtain rod supporting piece 2 is used for supporting the curtain rod 3, and the sound insulation curtain is hung outside the curtain rod 3 and can be freely contracted;

the sound insulation curtain 1 comprises a first curtain cloth 11 and a second curtain cloth 12 which are consistent in size, a plurality of local resonance units 13 are arranged between the first curtain cloth 11 and the second curtain cloth 12, the local resonance units 13 are distributed at certain intervals and fixed in a sewing mode, and meanwhile, the edges of the first curtain cloth 11 and the second curtain cloth 12 can be fixed in a sewing mode; compared with the traditional cloth curtain, the sound insulation performance can be effectively improved, and local resonance units can be selected for assembly according to different noise frequency bands. Different using purposes are achieved;

please refer to fig. 2, 3 and 4: the local resonance unit 13 comprises two frames 131 with hollow middle (the frames 131 and the hollow inner part are rectangular, the short side of the hollow inner part of the frame 131 is L1, the long side of the hollow inner part of the frame 131 is L2, and L2=3L1), a layer of film 132 is clamped between the two frames 131, a shell plate 133 is arranged on one side surface of the two frames 131 away from each other, and the frames 131 and the film 132 and the shell plate 133 and the frame 131 are fixed in an adhesive clamping manner;

the sound insulation principle in the above embodiment is as follows:

the film 132 in the local resonance unit 13 forms an air layer with the frame 131, the film 132 and the housing 133 to generate a coupled resonance system; when the sound wave is transmitted to the local thin film resonance unit 13, the frequency of the sound wave is matched with the resonance natural frequency of the local thin film resonance unit, so that the thin film inside the local thin film resonance unit resonates, the thin film deforms when vibrating, and the sound energy of noise is converted into strain energy of the thin film, thereby blocking the transmission of the noise; the natural frequency of the vibration system can be changed by changing the tension of the film and the thickness of the air layer, so that sound waves with different frequencies can be blocked;

and the resonance frequency of the resonance system and the unit area mass of the film, the thickness of the air layer behind the film, and the tension of the filmThe magnitude of the force is related, wherein the resonance frequency f of the resonance system ₀ The method comprises the following steps:

wherein; m is M ₀ Is the mass per unit area of the film, kg/m ² The method comprises the steps of carrying out a first treatment on the surface of the H is the thickness of an air layer between the film and the shell plate, and m; ρ ₀ Is air density, kg/m ³ The method comprises the steps of carrying out a first treatment on the surface of the c is the speed of sound waves in the air, m/s.

In the description of the present utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

Although embodiments of the present utility model have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the claims and their equivalents.

Claims

1. A sound insulation (window) curtain based on local area type film resonance technique, its characterized in that: the sound insulation curtain comprises a first curtain cloth (11) and a second curtain cloth (12) which are identical in size, and a plurality of local resonance units (13) are arranged between the first curtain cloth (11) and the second curtain cloth (12) to form the sound insulation curtain (1).

2. The sound insulation curtain based on the local thin film resonance technology as claimed in claim 1, wherein: the local resonance units (13) are arranged between the first curtain cloth (11) and the second curtain cloth (12) in a sewing or adhesive fixing mode.

3. The sound insulation curtain based on the local thin film resonance technology as claimed in claim 1, wherein: the local resonance unit (13) comprises two frames (131) with hollowed-out middle parts, a layer of film (132) is clamped between the two frames (131), and a shell plate (133) is arranged on one side surface of the two frames (131) away from each other.

4. A sound insulation curtain based on a localized thin film resonance technology as claimed in claim 3, wherein: the frame (131) and the film (132) and the shell plate (133) and the frame (131) are fixed by gluing or clamping with bolts.

5. A sound insulation curtain based on a localized thin film resonance technology as claimed in claim 3, wherein: the short side size of the hollow inside of the frame (131) is L1, the long side size of the hollow inside of the frame (131) is L2, and L2 is more than or equal to 3L1.

6. The sound insulation curtain based on the local thin film resonance technology as claimed in claim 1, wherein: the novel sound insulation curtain comprises a curtain rod support piece (2) and a curtain rod (3), wherein the curtain rod support piece (2) is used for supporting the curtain rod (3), and the sound insulation curtain is hung outside the curtain rod (3) and can be freely contracted.