Soundproof ventilator

Abstract

The application belongs to the field of building sound insulation and noise reduction, and particularly relates to a sound insulation ventilation window, which comprises a window body, the window body comprises an outer window 1 and an inner window 2, the outer window 1 and the inner window 2 are fixedly connected, a convex strip 3 is arranged on the outer surface of the outer window 1, air inlet holes 31 are arranged on the two sides of the convex strip 3 respectively, the air inlet holes 31 on the two sides of the convex strip 3 are oppositely arranged, and air outlet holes 21 that are in communication with the air inlet holes 31 are arranged on the outer surface of the inner window 2. Compared with the prior art, the air inlet holes are not arranged on the outer surface of the window sash in a forward direction, so that the transmission of sound waves is reduced, on the other hand, the air inlet holes are oppositely arranged in pairs, so that most of the noise is reduced or eliminated by using the principle of sound wave phase cancellation, and the noise reduction effect is better.

Description

Technical Field

[0001] This invention belongs to the field of building sound insulation and noise reduction, and specifically relates to a soundproof and ventilated window. Background Technology

[0002] In spring and autumn, the outdoor air is cool at night, and while you might want to open the windows for ventilation, you're often woken up by outdoor noise. To enjoy a peaceful and relaxing time, even when the outdoor temperature is pleasant and the air is fresh, you have to keep the doors and windows tightly closed and turn on the air conditioner. This is not only detrimental to building energy conservation and emission reduction, but also to our health.

[0003] Existing ventilation and soundproof windows, such as CN201010211104.9 and CN201220138935.2, all involve installing silencers or sound-absorbing materials within the ventilation channel formed inside the window, resulting in limited sound attenuation. Summary of the Invention

[0004] To address the aforementioned problems of simple sound-absorbing structures and low sound absorption in existing ventilation and soundproof windows, this invention provides a soundproof ventilation window.

[0005] The objective of this invention is achieved in the following manner: a soundproof and ventilated window, comprising a window body, the window body comprising an outer window 1 and an inner window 2, the outer window 1 and the inner window 2 being fixedly connected, the outer surface of the outer window 1 being provided with a protruding strip 3, and air inlets 31 being provided on both sides of the protruding strip 3, the air inlets 31 on both sides of the protruding strip 3 being arranged opposite to each other, and the outer surface of the inner window 2 being provided with an air outlet 21 communicating with the air inlets 31.

[0006] Furthermore, a reflective cavity 11 is formed between the protrusions 3 extending from the outer surface of the outer window 1. The bottom of the reflective cavity 11 is a reflective plate 111, and an air inlet 31 is provided on the protrusions 3 on the side wall of the reflective cavity 11. The protruding strip 3 is a hollow structure, which forms a sound-absorbing cavity a32. The inner window 2 includes a bottom plate 22, and the protruding strip 3 extends to the bottom plate 22. The space surrounded by the protruding strip 3, the reflector 111 and the base plate 22 is a hollow structure, which forms a sound-absorbing cavity b23. The protruding strip 3 is provided with an air passage 33, which connects the sound-absorbing cavity a32 and the sound-absorbing cavity b23. The vent 21 is located on the base plate 22 at the rear end of the silencing cavity b23.

[0007] Furthermore, multiple protruding strips 3 intersect vertically to form a square grid structure, and the reflective cavity 11 on the square grid structure is a square groove, with an air inlet 31 provided on each side wall of the square groove.

[0008] Furthermore, a first sound-absorbing block 321 is provided at the rear end of the silencing cavity a32, and the first sound-absorbing block 321 is fixedly connected to the front side of the base plate 22.

[0009] Furthermore, a second sound-absorbing block 231 is provided at the front end of the silencing cavity b23, and the second sound-absorbing block 231 is fixedly connected to the rear side of the reflector 111.

[0010] Furthermore, a sound insulation and vibration damping layer 4 is provided between the outer window 1 and the inner window 2, and the two sides of the sound insulation and vibration damping layer 4 are fixedly connected to the outer window 1 and the inner window 2 respectively.

[0011] Compared to existing technologies, the air intakes of this invention are not positioned facing the outer surface of the window sash, reducing the transmission of sound waves. On the other hand, the air intakes are arranged in pairs facing each other, which utilizes the principle of anti-phase cancellation of sound waves to reduce or eliminate most of the noise, resulting in a better sound attenuation effect. Attached Figure Description

[0012] Figure 1 This is a side sectional view of a soundproof and ventilated exterior window; Figure 2 This is a schematic diagram illustrating the principle of ventilation and sound insulation. Figure 3 This is the main view of the soundproof and ventilated exterior window, which includes the design based on... Figure 1 AA, BB, CC views; Figure 4 yes Figure 3 Enlarged view of part of the image; Figure 5 This is a schematic diagram of another embodiment.

[0013] Among them, there are outer window 1, reflective cavity 11, reflective plate 111, inner window 2, air outlet 21, bottom plate 22, sound-absorbing cavity b23, second sound-absorbing block 231, convex strip 3, air inlet 31, sound-absorbing cavity a32, first sound-absorbing block 321, air passage 33, and sound insulation and vibration reduction layer 4. Detailed Implementation

[0014] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] In this invention, unless otherwise explicitly specified and limited, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0016] As attached Figure 1-4 As shown, a soundproof and ventilated window includes a window body, which includes an outer window 1 and an inner window 2, which are fixedly connected. The outer surface of the outer window 1 is provided with a raised strip 3, preferably with a height of 20-100mm. Air inlets 31 are provided on both sides of the raised strip 3, and the air inlets 31 on both sides of the raised strip 3 are arranged opposite to each other. Preferably, both sides of the raised strip 3 are perpendicular to the outer window 1. The outer surface of the inner window 2 is provided with an air outlet 21 that communicates with the air inlets 31.

[0017] like Figure 2 As shown, since the air inlet 31 is not set in the front direction on the outer surface of the window sash, most of the sound waves are reflected by the outer surface of the outer window 1, and a small part of the sound waves enter the air inlet 31. The air inlets 31 are set in pairs facing each other, so that the principle of anti-phase cancellation of sound waves can be used to reduce or eliminate most of the noise, and the sound insulation effect is better.

[0018] Furthermore, a reflective cavity 11 is formed between the protrusions 3 extending from the outer surface of the outer window 1. The bottom of the reflective cavity 11 is a reflective plate 111 used to reflect most of the sound waves. An air inlet 31 is provided on the protrusions 3 on the side wall of the reflective cavity 11. The protruding strip 3 is a hollow structure, which forms a sound-absorbing cavity a32. The inner window 2 includes a base plate 22, and the protruding strip 3 extends to the base plate 22 and is fixed. The space surrounded by the protruding strip 3, the reflector 111 and the base plate 22 is a hollow structure, which forms a sound-absorbing cavity b23. The protruding strip 3 is provided with an air passage 33, which connects the sound-absorbing cavity a32 and the sound-absorbing cavity b23. The vent 21 is located on the base plate 22 at the rear end of the silencing cavity b23.

[0019] Furthermore, multiple protruding strips 3 intersect vertically to form a square grid structure, and the reflective cavity 11 on the square grid structure is a square groove, with an air inlet 31 provided on each side wall of the square groove.

[0020] Preferably, the air intake 31 is also a square hole. The advantage of the above arrangement is that the air intake 31 is square and the two holes face each other, which cancels out the noise reduction effect better. In actual practice, this has been tested. Figure 5 The structure shown depicts a white portion (the raised strip 3) and a black portion (the reflector cavity 11). In this structure, the air inlet 31 is arc-shaped when viewed from the front; that is, the front end of the air inlet 31 protrudes forward along the air intake direction, while the sides bend backward. This allows sound waves to diffuse further after entering, enhancing the noise reduction effect compared to... Figure 1 The structure within is even worse.

[0021] Furthermore, a first sound-absorbing block 321 is provided at the rear end of the silencing cavity a32. The first sound-absorbing block 321 is fixedly connected to the front side of the base plate 22 to reduce the sound waves entering the silencing cavity a32 and transmitted to the base plate 22.

[0022] Furthermore, a second sound-absorbing block 231 is provided at the front end of the silencing cavity b23. The second sound-absorbing block 231 is fixedly connected to the rear side of the reflector 111. On the one hand, it is used to reduce the sound waves entering the silencing cavity b23. On the other hand, it can also block the solid noise generated by the absorption of noise by the reflector 11 from entering the silencing cavity b23.

[0023] The above settings can also minimize the thickness of the complex structure in this solution.

[0024] Preferably, the first sound-absorbing block 321 and the second sound-absorbing block 231 are porous sound-absorbing materials, and preferably foam materials.

[0025] Furthermore, a sound insulation and vibration damping layer 4 is provided between the outer window 1 and the inner window 2, and the two sides of the sound insulation and vibration damping layer 4 are fixedly connected to the outer window 1 and the inner window 2 respectively; in detail, the outer window 1 and the inner window 2 are manufactured separately, and their dividing line can be located at any position on the reflector 111 to the bottom plate 22. During production, a sound insulation and vibration damping layer 4 is provided between the two as a sandwich layer. The sound insulation and vibration damping layer 4 can be foam material, rubber material or other sound insulation and vibration damping material, which is used to prevent external noise from being transmitted to the inner component through solid vibration.

[0026] The principle of this invention is as follows: The reflective cavity 11 is preferably coated with a sound-absorbing material. Most of the noise is reflected, some of the noise is absorbed, and the other part of the noise enters the surrounding air inlet 31 with the gas. The silencing cavity a32 has its air inlet 31 facing each other in the adjacent reflecting cavity 11. It uses the principle of anti-phase cancellation of sound waves to reduce or eliminate most of the noise. Then it is absorbed by the first sound-absorbing block 321. The airflow turns again in the silencing cavity a32 and enters the silencing cavity b23. The noise-filtering air in the silencing cavity b23 will enter the room through the air vent. In addition, a second sound-absorbing block 231 is installed in the silencing cavity b23 to block solid noise generated by the noise absorbed by the reflection cavity 11 from entering the silencing cavity b23. The sound insulation and vibration damping layer 4 is used to connect the outer window 1 and the inner window 2, which are made of two parts. This prevents external noise from being transmitted to the inner components through solid vibration.

[0027] Throughout the process, the airflow changes direction four times, the sound waves undergo two phase-out cancellations, and there are multiple reflections and absorptions, resulting in a sound insulation of approximately 40 dB.

[0028] The above description is only a preferred embodiment of the present invention. It should be noted that those skilled in the art can make several changes and improvements without departing from the overall concept of the present invention, and these should also be considered within the scope of protection of the present invention.

Claims

1. A soundproof and ventilated window, characterized in that: The window includes an outer window (1) and an inner window (2), which are fixedly connected. The outer window (1) has a raised strip (3) on its outer surface, and air inlets (31) are provided on both sides of the raised strip (3). The air inlets (31) on both sides of the raised strip (3) are arranged opposite to each other. The inner window (2) has an air outlet (21) on its outer surface that communicates with the air inlets (31). A reflective cavity (11) is formed between the protrusions (3) extending from the outer surface of the outer window (1). The bottom of the reflective cavity (11) is a reflective plate (111). An air inlet (31) is provided on the protrusions (3) on the side wall of the reflective cavity (11). The convex strip (3) is a hollow structure, which forms a sound-absorbing cavity a (32). The inner window (2) includes a bottom plate (22), and the convex strip (3) extends to the bottom plate (22). The space surrounded by the convex strip (3), the reflector (111) and the base plate (22) is a hollow structure, which forms a sound-absorbing cavity b (23). An air passage (33) is provided on the convex strip (3), and the sound-absorbing cavity a (32) and the sound-absorbing cavity b (23) are connected through the air passage (33). The vent (21) is located on the bottom plate (22) at the rear end of the silencing cavity b (23); A sound insulation and vibration reduction layer (4) is provided between the outer window (1) and the inner window (2), and the two sides of the sound insulation and vibration reduction layer (4) are fixedly connected to the outer window (1) and the inner window (2) respectively.

2. The soundproof and ventilated window as described in claim 1, characterized in that: Multiple convex strips (3) intersect vertically to form a square grid structure. The reflective cavity (11) on the square grid structure is a square groove. An air inlet (31) is provided on each side wall of the square groove.

3. The soundproof and ventilated window as described in claim 1, characterized in that: The first sound-absorbing block (321) is set at the rear end of the silencing cavity a (32), and the first sound-absorbing block (321) is fixedly connected to the front side of the base plate (22).

4. A soundproof and ventilated window as described in claim 1, characterized in that: A second sound-absorbing block (231) is set at the front end of the silencing cavity b (23), and the second sound-absorbing block (231) is fixedly connected to the rear side of the reflector (111).

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