CN215056936U - Noise reduction grid - Google Patents

Abstract

The application provides a grid of making an uproar falls, including fixed frame, roof beam and output device, it falls the signal of making an uproar through the noise signal according to the noise signal of window form structure outside space and/or the noise signal of window form structure inside space and corresponding output to the sound field is offset to the noise realization that gets into indoor. This application can the coupling fix on current window body structure, need not to reinstall the window body to can not shelter from light, can not obstruct the air current circulation. The sound insulation bottleneck of the existing sound insulation device can be broken through, and the ventilation requirement cannot be influenced aiming at the use scene of the existing window.

Description

Noise reduction grid

Technical Field

The application relates to the field of noise reduction equipment, in particular to a noise reduction grid.

Background

Residents living in cities are always affected by outdoor environmental noise, and the current mode for solving the problem tends to be passive. The common mode is to select the vacuum glass or multi-layer vacuum glass with better sound insulation effect and arrange the glass frame with the sealing strip to prevent sound leakage of the window. However, the existing method has limited noise reduction effect on the noise with overlarge volume on the street. And when the window is required to be opened for ventilation, the sound insulation device basically loses the sound insulation effect.

Although the active noise reduction window aiming at solving the problem of noise outside the window gradually appears at present, the existing noise reduction window body structure can shield light outside the window and block air flow circulation, and the problems of shading and wind shielding exist. Furthermore, existing active noise reduction windows require a complete replacement for existing windows when installed. When the existing active noise reduction window body is installed, the existing complete window structure needs to be completely dismantled and then directly installed at the window position of a building. The active noise reduction window adopting the installation mode needs to be customized according to the size of the window, so that the problem of high manufacturing cost exists, and the noise reduction requirement of existing traditional window inventory users cannot be met.

The application provides an active noise reduction method related to a window, a grating and a noise reduction window with the grating. The problem of traditional passive noise reduction effect poor, the realization of initiatively making an uproar is not good is solved in the aim at.

SUMMERY OF THE UTILITY MODEL

In order to solve the deficiencies that prior art exists, the utility model aims to provide a noise reduction grid, through carrying out the coupling installation with it and current window body structure, can realize reducing the effect of indoor noise under the prerequisite of not sheltering from light and ventilating.

To achieve the above object, the present application provides a noise reduction grill, comprising: the fixed frame is used for being coupled and fixed with the window structure; a beam mounted within the fixed bezel; and the output device is used for outputting a noise reduction signal so as to reduce the noise of the space inside the window structure, and the noise reduction signal is determined according to the noise signal of the space outside the window structure and/or the noise signal of the space inside the window structure.

Optionally, the noise reduction grid according to any of the above descriptions, wherein at least one signal collecting device is further provided for collecting the noise signal of the space outside the window structure and/or the noise signal of the space inside the window structure.

Optionally, the noise reduction grid according to any of the above embodiments, further comprising a central processing unit, where the output device and the signal acquisition device are respectively connected to the central processing unit, and are configured to determine, according to the noise signal acquired by the signal acquisition device, that the output device outputs the noise reduction signal.

Optionally, the noise reduction grille according to any of the above embodiments further includes a sound cavity structure disposed on the beam and/or the fixed frame for accommodating an output device.

Optionally, the noise reduction grid as described in any of the above, wherein the central processing unit is integrated with a power supply or an adapter as an external device.

Optionally, the noise reduction grid according to any of the above embodiments, further includes a power supply device, and a power supply mode of the power supply device includes an external power supply and a battery.

Optionally, the noise reduction grid as in any above, wherein the output means comprises 24 or 48.

Optionally, the noise reduction grid according to any of the above claims, wherein the beam and/or the fixing frame are configured as a recess or cavity structure for accommodating a connection line between the output device and the signal acquisition device.

Meanwhile, the application also provides an active noise reduction window, wherein the active noise reduction window comprises the noise reduction grid.

Optionally, the active noise reduction window as described above is opened and closed in a sliding manner.

Compared with the prior art, the method has the following technical effects:

the application provides a noise reduction grid, which correspondingly outputs a noise reduction signal according to a noise signal of a space outside a window structure and/or a noise signal of a space inside the window structure, so that sound field cancellation is realized for noise entering a room. This application can direct coupling fix on current window body structure, need not to reinstall the window body to can not shelter from the light of window, can not obstruct window air current circulation. The sound insulation bottleneck of the existing sound insulation device can be broken through, and the ventilation requirement and the lighting requirement cannot be influenced aiming at the use scene of the existing window.

Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the application.

Drawings

The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application and not limit the application. In the drawings:

fig. 1 is a schematic view of a noise reduction grid according to the present application.

In the drawings, 1 denotes a fixed frame; 2 denotes a beam; 3 denotes an output device; 4 denotes a collecting device; 5 denotes a mounting link; and 6 denotes a depression.

Detailed Description

The preferred embodiments of the present application will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein only to illustrate and explain the present application and not to limit the present application.

In the present application, the meaning of "and/or" means that the respective cases exist individually or both at the same time.

In the present application, the meaning of "inside and outside" means that, with respect to the noise reduction grid itself, the direction pointing from its fixed frame to the internal output device is inside, and vice versa; and not as a specific limitation on the mechanism of the device of the present application.

In the present application, "connected" may mean either a direct connection between components or an indirect connection between components via other components.

The noise reduction grid that this application provided, as shown in fig. 1, includes:

the fixed frame 1 can be directly coupled and fixed with the existing window structure without disassembling the existing window;

the beam 2 is arranged in the fixed frame 1, is usually arranged in parallel or regularly arranged, and can be a cross beam or a longitudinal beam;

and the output devices 3 are respectively arranged on the beams 2 and are used for outputting noise reduction signals so as to reduce the noise of the space inside the window structure, and the noise reduction signals are determined according to the noise signals of the space outside the window structure and/or the noise signals of the space inside the window structure.

In order to accurately generate a noise reduction signal which has the same amplitude as the outdoor noise but has an opposite phase with the outdoor noise according to the outdoor noise condition, the method can further realize the acquisition of the noise signal outside the window through an acquisition device consisting of a microphone, a sound pick-up, a vibration sensor and the like. The collected noise signals are processed by the central processing unit to correspondingly generate noise reduction signals capable of realizing sound field offset, and the output device outputs the noise reduction signals to achieve a better noise reduction effect.

In this application, the output device can be correspondingly realized through sound field output equipment such as a loudspeaker, a loudspeaker and the like. The output device, the acquisition device and the central processing unit are usually connected with a power supply module corresponding to the power supply requirement of the central processing unit.

In order to ensure the noise reduction effect and ensure the accuracy of the acquired noise signals and ensure that the noise reduction sound wave output by the output device can be offset with the noise outside the window, the signal acquisition device 4 and the output device 3 can be further arranged and installed on the beam 2 in a back-to-back mode. Therefore, the signal acquisition direction of the signal acquisition device 4 faces the outside of the window, and the signal output direction of the output device 3 correspondingly faces the inside of the window, so that the accuracy of noise signal sampling can be ensured, and the sound field offset effect of noise reduction sound waves can be ensured.

Under some implementation, for the grid of making an uproar that falls of this application of easy to assemble, this application can also set up erection joint spare 5 to current window body structure on roof beam 2 or fixed frame 1, realizes falling the fixed connection between grid and the window body structure of making an uproar through erection joint spare 5. Generally, the installation connector 5 can be coupled to the existing window structure by means of a snap, a hook, a slide rail, etc.

And the output device can also be arranged in the sound cavity structure, and the fixed connection between the output device and the beam and/or the fixed frame is realized through the sound cavity structure.

The fixed frame after the connection mainly used fixed beam, roof beam 2 and fixed frame 1 can set up to be close parallel with the window form structure usually, can guarantee the sampling effect like this to guarantee to fall that the sound wave of making an uproar can be even abundant effect and get into indoor whole noise component from the window frame, can not produce relatively poor noise reduction effect in some positions because of the direction of propagation of sound field.

Generally speaking, in order to ensure that the noise reduction signal is uniformly output and uniformly and efficiently acts on the sound field entering the room through the window, the present application may set the beams 2 to be uniformly distributed in multiple groups in the window space, and each beam 2 is set to be respectively provided with at least one output device 3 and/or at least one input device. Output channels formed by the output devices are uniformly distributed on the inner side of the window body structure, so that noise reduction sound waves can be uniformly distributed on the inner side of the window body, and noise reduction is realized on the whole sound field distribution on the inner side of the window body.

For installing the output device and the collecting device, the beam 2 and/or the fixed frame 1 may be further provided with a recess 6 or a cavity for installing the electronic devices and/or circuits of the output device 3 and/or the collecting device 4. The recesses 6 or cavities may be arranged to be exposed at the surface of the structure or embedded as desired to avoid visual interference from exposure at the surface of the structure. The recess 6 or the cavity can be effectively used for accommodating an electronic system connecting circuit corresponding to the output device, the acquisition device, the signal processing device and the power module.

As a preferred way, the present application may specifically provide that the output means 3 comprise 24 groups or 48 groups evenly distributed in the window space, so that they form 24 output channels or 48 output channels, respectively. Therefore, powerful and instant noise reduction effect is achieved.

In other implementations, the number of signal acquisition devices located outside the window and the number of output devices located inside the window may be determined according to the ambient noise conditions outside the window. The number and arrangement of the specific devices should not be construed as limiting the scope of the present application.

The central processing unit for analyzing and processing the noise and generating corresponding noise reduction signals may optionally be fixed at the fixed frame, beam, etc. The output device and the signal acquisition device are respectively connected with the central processing unit and used for determining the noise reduction signal output by the output device according to the noise signal acquired by the signal acquisition device. In order to conveniently realize the power supply of the central processing unit, the central processing unit can be used as an external device and is integrated with a power supply or an adapter, and the central processing unit is connected with the input device and the output device through circuit connecting wires, so that the transmission and interaction of signals are realized.

The utility model provides a grid of making an uproar falls, but its central processing unit, collection system, the power supply unit that output device connects are nimble to be selected, set up to through external power supply, or directly through the battery power supply.

The application has the advantages that:

by adopting the active noise reduction mode, the problem that noise outside a window cannot be eliminated can be solved fundamentally. Moreover, the noise reduction grating can be directly installed and fixed through coupling with the existing window body structure, and the whole window body does not need to be additionally updated. The installation cost and material counterfeiting of the application are obviously superior to those of the existing products.

Those of ordinary skill in the art will understand that: although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention as defined in the appended claims. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. A noise reducing grill, comprising:

the fixed frame is used for being coupled and fixed with the window structure;

a beam mounted within the fixed bezel;

and the output device is used for outputting a noise reduction signal so as to reduce the noise of the space inside the window structure, and the noise reduction signal is determined according to the noise signal of the space outside the window structure and/or the noise signal of the space inside the window structure.

2. Noise reduction grid according to claim 1, characterized in that at least one signal pick-up device is provided for picking up the noise signal of the space outside the window structure and/or the noise signal of the space inside the window structure.

3. The noise reduction grid according to claim 2, further comprising a central processing unit, wherein said output device and said signal acquisition device are respectively connected to said central processing unit for determining that said noise reduction signal is outputted from said output device according to said noise signal acquired by said signal acquisition device.

4. A noise reducing grill according to claim 3, further comprising an acoustic chamber structure provided to the beam and/or the fixed bezel for accommodating an output device.

5. The noise reduction grid according to claim 3, wherein said central processing unit is integrated as an external device with a power supply, or an adapter.

6. The noise reduction grill of claim 1, further comprising a power supply device, wherein the power supply device is powered by an external power source and a battery.

7. The noise reduction grid according to claim 1, wherein the output means comprises 24 or 48.

8. Noise reduction grid according to claim 1, wherein said beams and/or said fixed rim are provided as a recess or cavity structure for accommodating connection lines of said output means with said signal acquisition means.

9. An active noise reduction window comprising a noise reduction grid according to any of claims 1 to 8.

10. The active noise reduction window of claim 9, wherein the opening and closing is push-pull.

Images