CN205823099U - A kind of novel sound window - Google Patents

Abstract

The utility model relates to the technical field of sound-insulating windows, in particular to a new type of sound-insulating window, which includes a window, which is surrounded by double-layer tempered glass and steel plates to form a cavity structure. There are active noise reduction devices and passive sound absorption devices in the channel. The passive sound absorption devices include a number of transparent ultra-micro perforated plate passive sound absorption materials and a number of transparent partitions. The active noise reduction device includes a number of reference sensors, a number of error sensors, A number of secondary sound sources and a number of active controllers, reference sensors, error sensors and active controllers are respectively arranged in corresponding grids. The utility model adopts double-layer tempered glass as a whole, which has the advantages of better heat insulation, heat preservation, and noise reduction, and achieves double benefits of energy saving and emission reduction. At the same time, it effectively solves the contradiction between ventilation without noise reduction and noise reduction without ventilation, making up for The disadvantages of the existing sound-insulating windows make the elimination of noise more thorough, increase the ventilation volume of the existing sound-insulating windows, and make the indoor air circulation smoother.

Description

A new type of soundproof window

technical field

The utility model relates to the technical field of sound-insulating windows, in particular to a novel sound-insulating window.

Background technique

With the rapid development of society, the disturbance and harm of urban noise to residents are becoming more and more serious, and it has become a major public hazard in the urban environment. It interferes with residents' work, study, rest and sleep, and seriously endangers human health, causing diseases and Noise-induced deafness. Setting up sound barriers next to urban noise is one of the main measures to prevent noise, but the average noise reduction is only 3-5db(A), and it has basically no effect on buildings of a certain height. To solve this problem, urban residents usually install fully-sealed sound-insulating windows to reduce the noise introduced into the room from the outside. However, it is difficult to achieve the purpose of natural indoor ventilation and air exchange with sealed and sound-insulated windows, resulting in the inability of natural circulation of indoor air.

Aiming at the contradiction between closing the window for noise reduction and no ventilation and opening the window for ventilation without noise reduction, natural ventilation sound insulation windows came into being. The current natural ventilation sound insulation windows use insulating glass for sound insulation, and mechanical air inlets and outlets are set to form indoor central ventilation without ducts. The system achieves sound insulation effect through passive sound insulation. However, there are some deficiencies in the existing natural ventilation sound insulation windows: 1. The noise is divided into low, medium and high frequency bands. Passive sound insulation windows are only effective for medium and high frequency noise, and have little effect on low frequency noise. The sound-absorbing material has the hazard of producing secondary pollution; 2. The existing natural ventilation sound-insulating window muffler channel is only a small part of the overall window, and most of the noise will still be transmitted to the room from the non-nechoic channel part. At the same time, there are also people in China who are doing research in this area. The application number CN03149203.0 proposes a fully transparent and noise-absorbing ventilation window, which adopts mechanical ventilation and installs microporous sound-absorbing materials between the two layers of glass to achieve passive noise reduction. noise function; application number 200810057120.X proposes a ventilation and sound insulation window, which has a certain noise reduction function by arranging passive sound-absorbing materials in the window; application number 201010211104.9 achieves active noise reduction by arranging active noise reduction devices Noise function, combined with a part of the passive noise reduction material.

Utility model content

In view of the above problems, the utility model provides a new type of sound insulation window, based on passive sound absorption technology and active noise reduction method, to realize the elimination of noise in each frequency band.

In order to achieve the above object, the technical scheme adopted by the utility model is as follows:

A new type of sound insulation window, including a window, the window is surrounded by double-layer tempered glass and steel plate to form a cavity structure, the window is provided with a noise reduction channel, and the noise reduction channel is equipped with an active noise reduction device and passive absorption Acoustic devices, active noise reduction devices and passive sound-absorbing devices are set correspondingly. The passive sound-absorbing devices include several transparent ultra-micro perforated plate passive sound-absorbing materials and several transparent partitions, several transparent ultra-micro-perforated plate passive sound-absorbing materials and some transparent The partitions are arranged in one-to-one correspondence, and the active noise reduction device includes several reference sensors, several error sensors, several secondary sound sources, and several active controllers, and the reference sensors, error sensors, and active controllers are respectively arranged in corresponding inside the grid.

Further, the passive sound-absorbing materials of the transparent ultra-micro perforated plates and the transparent partitions are arranged at intervals, and the passive sound-absorbing materials of the transparent ultra-micro perforated plates and the transparent partitions are vertically arranged in the sound-absorbing channel, and the molding design There are several channel structures, and the passive sound-absorbing material of the transparent ultra-micro perforated plate adopts PETG transparent plate.

Further, the double-layer tempered glass includes outdoor tempered glass and indoor tempered glass, an air inlet is provided under the outdoor tempered glass, an air outlet under the inner window is arranged under the indoor tempered glass, and an inner window is arranged above the indoor tempered glass. Air outlet on the window.

Furthermore, the air inlet, the lower air outlet of the inner window, and the upper air outlet of the inner window are all provided with a top-hung window structure, and the air inlet, the lower air outlet of the inner window, and the upper air outlet of the inner window are all provided with window screens.

Further, the error sensor is arranged on the top of the active noise reduction device, the secondary sound source is arranged under the error sensor, the reference sensor is arranged under the secondary sound source, and the active controller is arranged under the reference sensor.

Further, the secondary sound source adopts a unidirectional speaker.

Further, the error microphone adopts a common microphone.

Beneficial effects of the utility model:

The utility model adopts such a structural setting, and adopts double-layer tempered glass as a whole, which has the advantages of better heat insulation, heat preservation, and noise reduction, and achieves the double benefits of energy saving and emission reduction, and at the same time effectively solves the problem of ventilation without noise reduction and noise reduction. The contradiction of ventilation solves the problem of noise affecting the life of residents in viaducts and other places, and makes up for the shortcomings of the noise being transmitted to the room through the non-nechoic channel of the existing sound insulation window, making the noise elimination more thorough and increasing the existing insulation. The ventilation volume of the acoustic window makes the indoor air flow more smoothly.

Description of drawings

The utility model will be further described below in conjunction with accompanying drawing and embodiment, in the accompanying drawing:

Fig. 1 is the overall structure diagram of the utility model;

Fig. 2 is the left side view of Fig. 1;

Fig. 3 is a top view of Fig. 1;

Figure 4 is a schematic diagram of active noise reduction.

1. Double-layer tempered glass; 2. Active noise reduction device; 3. Passive sound absorption device; 4. Steel plate; 5. Reference sensor; 6. Error sensor; 7. Secondary sound source; 8. Active controller; 9. Transparent partition; 10. Lower air inlet of outer window; 11. Lower air outlet of inner window; 12. Upper air outlet of inner window; 13. Window screen.

detailed description

The technical scheme of the present utility model is described below in conjunction with accompanying drawing and embodiment.

As shown in Figure 1, a new type of sound insulation window described in the utility model includes a window, the window is surrounded by double-layer tempered glass 1 and steel plate 4 to form a cavity structure, and the window is provided with a sound-absorbing channel to eliminate noise. An active noise reduction device 2 and a passive sound absorption device 3 are arranged in the sound channel, and the active noise reduction device 2 and the passive sound absorption device 3 are arranged correspondingly. The passive sound absorption device 3 includes a number of transparent ultra-micro perforated plate passive sound absorption materials and A number of transparent partitions 9, a number of transparent ultra-micro perforated plate passive sound-absorbing materials and a number of transparent partitions 9 are set in one-to-one correspondence, and the active noise reduction device 2 includes several reference sensors 5, several error sensors 6, and several secondary sound sources 7 With several active controllers 8 , the reference sensor 5 , the error sensor 6 and the active controllers 8 are respectively arranged in corresponding grids.

The above constitutes the utility model.

The overall structure of the window in the utility model adopts double-layer tempered glass 1 and steel plate 4 to form a cavity structure, which has the advantages of better heat insulation, heat preservation, and noise reduction, and achieves the double benefits of energy saving and emission reduction. An active noise reduction device 2 and a passive sound absorption device 3 are installed in the acoustic channel, and the active noise reduction device 2 and the passive sound absorption device 3 are set correspondingly to eliminate noise, and at the same time effectively solve the problem of ventilation without noise reduction and noise reduction. The contradiction of ventilation is to solve the problem of noise affecting the life of residents in viaducts and other places. The passive sound absorption device 3 includes a number of transparent ultra-micro perforated plate passive sound absorption materials and a number of transparent partitions 9. The active noise reduction device 2 includes a number of reference sensors. 5. A number of error sensors 6, a number of secondary sound sources 7 and a number of active controllers 8 make up for the shortcomings of the noise transmitted to the room through the non-nechoic channel of the existing sound insulation window, making the noise elimination more thorough and increasing The ventilation volume of the existing soundproof windows is improved, and the indoor air circulation is smoother.

More specifically, the plurality of transparent ultra-micro perforated plate passive sound-absorbing materials and the plurality of transparent partitions 9 are arranged at intervals, and the plurality of transparent ultra-micro-perforated plate passive sound-absorbing materials and several transparent partitions 9 are vertically arranged in the anechoic passage, And molding is provided with several channel structures, and the passive sound-absorbing material of the transparent ultra-micro perforated plate adopts PETG transparent plate. With such a structural setting, some transparent ultra-micro perforated plate passive sound-absorbing materials absorb noise based on the viscous action between the sound wave and the material and the principle of resonance, that is, when the frequency of the incident sound wave is consistent with the resonance frequency of the perforated material, the perforated plate neck The air produces violent vibration and friction, forming an absorption peak, strengthening the absorption effect, and significantly attenuating the sound energy to achieve the purpose of sound absorption. The passive sound absorption material of the transparent ultra-micro perforated plate in the utility model is a PETG transparent plate with a thickness of less than 1mm. To ensure the light transmission, aesthetics and prevent secondary pollution of the window, on the one hand to ensure the sound absorption performance of the material, PETG transparent board has outstanding toughness and high impact strength, and has a wide processing range, high mechanical strength and Excellent flexibility, higher transparency and better gloss than PVC, easy to print and has the advantages of environmental protection. Longitudinal arrangement enables adjacent ultra-micro perforated plate passive sound-absorbing materials and several transparent partitions 9 to form a closed cavity with a certain thickness to ensure a wider noise reduction frequency band and make noise reduction more thorough.

More specifically, the double-layer tempered glass 1 includes outdoor tempered glass and indoor tempered glass, an air inlet 10 is provided under the outdoor tempered glass, an air outlet 11 under the inner window is provided under the indoor tempered glass, and an air outlet 11 under the interior window is provided under the indoor tempered glass. The top is provided with air outlet 12 on the inner window.

More specifically, the air inlet 10, the lower air outlet 11 of the inner window and the upper air outlet 12 of the inner window are all set with a top-hung window structure, and the air inlet 10, the lower air outlet 11 of the inner window and the upper air outlet of the inner window 12 are all correspondingly provided with window screen 13. With such a structural setting, the upper-hung window structure is adopted, which is convenient for saving space and opening, and is also convenient for maintaining the equipment in the anechoic passage. The function of the window screen 13 is to prevent the entry of raindrops and prevent the entry of large particles of debris into the anechoic inside the channel.

More specifically, the error sensor 6 is arranged on the top of the active noise reduction device 2, the secondary sound source 7 is arranged under the error sensor 6, the reference sensor 5 is arranged under the secondary sound source 7, and the active controller 8 Set below the reference sensor 5. Preferably, the secondary sound source 7 is a unidirectional speaker, and the error microphone 6 is a general microphone. Its working principle: the noise is supported by the sound-absorbing material through the transparent ultra-micro perforated plate, in which the high-frequency noise is absorbed, and the remaining low-frequency noise and part of the intermediate-frequency noise are neutralized by the anti-reverse wave emitted by the secondary sound source 7, that is, the unidirectional speaker After the elimination, it is absorbed again, and the remaining noise is collected by the error sensor 6 and fed back to the active controller 8, which facilitates its optimization algorithm and sends a signal to the secondary sound source 7 to make it sound, so that the cycle finally achieves the goal of eliminating and reducing low-frequency noise Purpose.

The above are the preferred implementation modes of the utility model, and those skilled in the art to which the utility model belongs can also change and modify the above implementation modes. Therefore, the utility model is not limited to the above specific implementation manners, and any obvious improvements, replacements or modifications made by those skilled in the art on the basis of the utility model all belong to the protection scope of the utility model.

Claims (7)

1. A novel sound-insulating window, comprising a window, characterized in that: the window is surrounded by double-layer tempered glass (1) and steel plate (4) to form a cavity structure, and the window is provided with a sound-absorbing window. channel, the noise reduction channel is provided with an active noise reduction device (2) and a passive sound absorption device (3), and the active noise reduction device (2) and the passive sound absorption device (3) are arranged correspondingly, and the The passive sound-absorbing device (3) includes a plurality of transparent ultra-micro perforated plate passive sound-absorbing materials and several transparent partitions (9), and the plurality of transparent ultra-micro-perforated plate passive sound-absorbing materials correspond to several transparent partitions (9) one by one Set, the active noise reduction device (2) includes several reference sensors (5), some error sensors (6), some secondary sound sources (7) and some active controllers (8), the reference sensors ( 5), the error sensor (6) and the active controller (8) are respectively arranged in the corresponding grid. 2. A new type of sound insulation window according to claim 1, characterized in that: the passive sound-absorbing materials of the plurality of transparent ultra-micro perforated plates are spaced apart from the plurality of transparent partitions (9), and the plurality of transparent ultra-micro perforated plates The passive sound-absorbing material and several transparent partitions (9) are vertically arranged in the sound-absorbing channel, and several channel structures are formed. The transparent ultra-micro perforated plate passive sound-absorbing material adopts a PETG transparent plate. 3. A novel sound-insulating window according to claim 1, characterized in that: the double-layer tempered glass (1) includes outdoor tempered glass and indoor tempered glass, and an air inlet (10) is arranged below the outdoor tempered glass ), the lower part of the indoor tempered glass is provided with the lower air outlet (11) of the inner window, and the upper part of the indoor tempered glass is provided with the upper air outlet (12) of the inner window. 4. A new type of sound insulation window according to claim 3, characterized in that: the air inlet (10), the lower air outlet (11) of the inner window and the upper air outlet (12) of the inner window all adopt a top-hung window structure Set, the air inlet (10), the lower air outlet (11) of the inner window and the upper air outlet (12) of the inner window are respectively provided with window screens (13). 5. A new type of sound insulation window according to claim 1, characterized in that: the error sensor (6) is set on the top of the active noise reduction device (2), and the secondary sound source (7) is set on the Below the error sensor (6), the reference sensor (5) is arranged below the secondary sound source (7), and the active controller (8) is arranged below the reference sensor (5). 6. A new type of sound insulation window according to claim 5, characterized in that: the secondary sound source (7) adopts a unidirectional speaker. 7. A new type of sound insulation window according to claim 5, characterized in that: the error microphone (6) is a general microphone.