Sound insulation structure of broken bridge aluminum window

Abstract

The utility model discloses a sound insulation structure of a broken bridge aluminum window. The outer walls of window frame outer aluminum and window sash outer aluminum, facing outdoors, of the broken bridge aluminum alloy window are compounded with adhesive layers and protective plates. According to the sound insulation structure of the broken bridge aluminum window, the adhesive layer and the protective plate are compounded on the outer side wall of the broken bridge aluminum window, so that the noise reduction capacity of the aluminum window frame body structure is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of thermally broken aluminum windows and doors, and in particular to a sound insulation structure for thermally broken aluminum windows. Background Technology

[0002] Currently, thermally broken aluminum windows are a high-performance window product widely used in modern buildings. They typically include a frame structure, plastic thermal break strips, insulated glass, and a sealing structure. The plastic thermal break strips often use nylon strips to isolate the inner and outer frames, forming a circuit to break the heat transfer, thereby effectively reducing heat conduction, improving the thermal insulation performance of doors and windows, and achieving good thermal insulation effects.

[0003] Houses located near streets, train stations, and airports are easily disturbed by external noise, therefore, the sound insulation and noise reduction performance of doors and windows needs to be considered. Currently, to achieve better sound insulation and noise reduction, improvements are often made in two ways: enhancing the sound insulation performance of materials or increasing the sealing performance by filling the gaps with dense foam. Regarding improving the sound insulation performance of materials, this often involves replacing double-glazed windows with laminated glass, increasing the thickness of aluminum alloy panels, and increasing the number of cavities, among other things. However, while increasing the thickness of the aluminum alloy can improve sound insulation, it significantly increases production costs, and increasing the number of cavities increases the difficulty of mold making and processing, both of which lead to substantial cost increases.

[0004] Therefore, it is necessary to develop a sound insulation structure for thermally broken aluminum windows to address the aforementioned defects. Utility Model Content

[0005] The purpose of this invention is to provide a sound insulation structure for thermally broken aluminum windows. By applying a composite adhesive layer and a protective plate to the outer wall of the thermally broken aluminum window, the noise reduction capability of the aluminum window frame structure is significantly improved.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] The sound insulation structure of this utility model of thermally broken aluminum window has an adhesive layer and a protective plate laminated on the outer aluminum walls of the window frame and the window sash facing the outside.

[0008] Furthermore, the protective panel is made of aluminum alloy decorative material, and the adhesive layer is specifically made of PVB film layer hot-pressed and laminated between two layers of aluminum material.

[0009] Furthermore, the exposed narrow edges of the adhesive layer and protective plate are sealed with weather-resistant adhesive.

[0010] Furthermore, the thickness of the adhesive layer is not less than 0.6 mm.

[0011] Furthermore, a sound-absorbing chamber is provided inside the outer aluminum wall panel of the window frame and the outer aluminum wall panel of the window sash, and the sound-absorbing chamber is filled with sound-absorbing cotton or polyurethane foam.

[0012] Furthermore, the thickness of the anechoic chamber is between 5 and 8 millimeters.

[0013] Furthermore, multiple injection holes are provided on the outer aluminum of the window frame and the outer aluminum of the window sash, and the liquid polyurethane foam is injected through the injection holes; the adhesive layer seals the injection holes.

[0014] Furthermore, the glass in the thermally broken aluminum alloy window specifically uses double-glazed laminated glass, with the outer glass being laminated glass.

[0015] Compared with the prior art, the beneficial technical effects of this utility model are as follows:

[0016] This utility model of a thermally broken aluminum window features a sound insulation structure that reduces noise at the point of direct contact with sound waves by applying a composite adhesive layer and a protective plate to the outer wall of the thermally broken aluminum window facing outwards. The flexible adhesive layer significantly reduces the inward transmission of noise, while the protective plate protects the adhesive layer from aging and failure. This novel sound insulation structure for thermally broken aluminum windows, through the composite adhesive layer and protective plate on the outer wall of the window, greatly improves the noise reduction capability of the aluminum window frame structure.

[0017] Furthermore, the use of PVB adhesive significantly reduces noise and vibration from the aluminum material, especially low-frequency noise from traffic. Sealing the narrow exposed edges of the adhesive layer and protective panel with weather-resistant adhesive prevents moisture corrosion that could cause the protective panel to peel or even detach. Adding a large overlap between the sound-absorbing chamber and the outer aluminum, and filling it with sound-absorbing cotton or polyurethane foam, provides secondary sound absorption across the entire noise wave contact surface, reducing noise transmission into the interior. Properly setting the thickness of the sound-absorbing chamber ensures sufficient filling of the sound-absorbing cotton or polyurethane foam, reducing the probability of water ingress. Adding injection holes allows for the full injection of polyurethane foam and also acts as recesses to increase the contact area between the adhesive layer and the outer aluminum, enhancing the composite bonding strength. This composite glass achieves excellent overall noise reduction; the PVB adhesive film in the laminated glass absorbs vibrations, significantly reducing low-frequency noise, while the insulated glass effectively blocks mid-to-high-frequency noise such as horn sounds and tire noise. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is a front sectional view of the sound insulation structure of the thermally broken aluminum window of this utility model.

[0020] Figure 2 for Figure 1 A magnified schematic diagram of the structure of part I in the middle.

[0021] Explanation of reference numerals in the attached diagram: 1. Outer aluminum of the window frame; 2. Outer aluminum of the window sash; 3. Adhesive layer; 4. Protective plate; 5. Glass; 6. Soundproof chamber; 7. Window sash thermal insulation strip; 8. Injection hole; 9. Window frame thermal insulation strip; 10. Inner aluminum of the window frame; 11. Inner aluminum of the window sash; 12. Pressure strip. Detailed Implementation

[0022] The core of this utility model is to provide a sound insulation structure for thermally broken aluminum windows. By bonding an adhesive layer and a protective plate to the outer wall of the thermally broken aluminum window, the noise reduction capability of the aluminum window frame structure is greatly improved.

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not 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 this utility model.

[0025] In one specific implementation, such as Figure 1 and Figure 2 As shown, the sound insulation structure of this utility model's thermally broken aluminum window is an improvement on the existing thermally broken aluminum alloy window. Similar to existing thermally broken aluminum alloy windows, it includes an outer aluminum frame 1, an outer aluminum sash 2, glass 5, a thermal break strip for the sash 7, a thermal break strip for the frame 9, an inner aluminum frame 10, an inner aluminum sash 11, and a retaining strip. Three sealing strips are installed between the window frame and the sash to ensure good sealing performance. A key difference from existing technology is that the outer aluminum frame 1 and the outer aluminum sash 2 facing outwards in this thermally broken aluminum alloy window are laminated with an adhesive layer 3 and a protective plate 4.

[0026] By applying a composite adhesive layer 3 and a protective plate 4 to the exterior wall of the thermally broken aluminum alloy window facing the outside, noise reduction is achieved at the location most directly exposed to sound waves. The flexible adhesive layer 3 significantly reduces the inward transmission of noise, while the protective plate 4 protects the adhesive layer 3, preventing it from aging and failing. This invention's sound insulation structure for thermally broken aluminum windows, through the composite adhesive layer and protective plate on the outer wall of the window, significantly improves the noise reduction capability of the aluminum window frame structure.

[0027] In one specific embodiment of this utility model, such as Figure 1 and Figure 2 As shown, the protective plate 4 is made of aluminum alloy decorative material, and the adhesive layer 3 is specifically made of PVB film layer hot-pressed and laminated between two layers of aluminum material.

[0028] Obviously, the PVB film of adhesive layer 3 can also be cold-pressed with an adhesive, but the peel strength will be reduced.

[0029] Specifically, such as Figure 1 As shown, the exposed narrow edges of the adhesive layer 3 and the protective plate 4 are sealed with weather-resistant adhesive.

[0030] Specifically, such as Figure 1 and Figure 2 As shown, the thickness of adhesive layer 3 is not less than 0.6 mm. At a minimum, two 0.38 mm PVB film layers are used for hot-press lamination.

[0031] The use of PVB adhesive layer 3 significantly reduces noise and vibration in aluminum materials, especially low-frequency noise caused by traffic flow. By sealing the exposed narrow edges of adhesive layer 3 and protective plate 4 with weather-resistant adhesive, the edges can be sealed to prevent moisture corrosion from causing the protective plate 4 to peel or even fall off.

[0032] In one specific embodiment of this utility model, such as Figure 1 and Figure 2 As shown, a soundproof chamber 6 is provided inside the outer wall panel of the window frame aluminum 1 and the window sash aluminum 2. The soundproof chamber 6 is arranged along the outer wall panel over a large area and is filled with soundproof cotton or polyurethane foam.

[0033] Specifically, such as Figure 2 As shown, the thickness of the anechoic chamber 6 is between 5 and 8 mm. There is no need to add a thicker anechoic chamber 6; the narrower space ensures that the sound-absorbing cotton or polyurethane foam is fully packed, reducing the probability of water ingress.

[0034] Specifically, such as Figure 2 As shown, multiple injection holes 8 are provided on the outer wall panels of the window frame (aluminum 1) and the window sash (aluminum 2), through which liquid polyurethane foam is injected. During the hot-pressing process, the adhesive layer 3 seals the injection holes 8.

[0035] By adding a silencing chamber 6 that overlaps significantly with the outer aluminum surface and filling it with sound-absorbing cotton or polyurethane foam, secondary sound absorption treatment can be performed on the entire noise wave contact surface, reducing noise transmission into the room. By appropriately setting the thickness of the silencing chamber 6, sufficient filling of the sound-absorbing cotton or polyurethane foam is ensured, also reducing the probability of water ingress. The addition of injection holes 8 allows for the full injection of polyurethane foam and also acts as recesses to increase the contact area between the adhesive layer 3 and the outer aluminum surface, thereby increasing the composite bonding strength.

[0036] In one specific embodiment of this utility model, such as Figure 1 As shown, the glass 5 in the thermally broken aluminum alloy window specifically uses double-glazed laminated glass, with the outer glass being laminated glass. For example, using...

[0037] Composite glass consisting of 5mm + 0.76PVB + 5mm12A + 5mm + 12A + 5mm.

[0038] This type of composite glass can achieve better overall noise reduction. The PVB film of the laminated glass can absorb vibration and significantly reduce low-frequency noise, while the double-glazed glass can effectively block mid-to-high-frequency noise such as horn noise and tire noise.

[0039] In summary, the sound insulation structure of this novel thermally broken aluminum window reduces noise at the point of direct contact with sound waves by applying a composite adhesive layer 3 and a protective plate 4 to the outer wall of the thermally broken aluminum alloy window facing the outside. The flexible adhesive layer 3 significantly reduces the inward transmission of noise, while the protective plate 4 protects the adhesive layer 3, preventing it from aging and failing. This novel thermally broken aluminum window structure, by applying a composite adhesive layer and a protective plate to the outer wall of the thermally broken aluminum window, significantly improves the noise reduction capability of the aluminum window frame structure. Furthermore, the use of PVB material in the adhesive layer 3 significantly reduces the noise vibration of the aluminum material, especially low-frequency noise caused by traffic flow. Sealing the exposed narrow edges of the adhesive layer 3 and the protective plate 4 with weather-resistant adhesive seals prevents moisture corrosion from causing the protective plate 4 to peel or even fall off. By adding a large overlap between the sound-absorbing chamber 6 and the outer aluminum, and filling it with sound-absorbing cotton or polyurethane foam, secondary sound absorption treatment can be performed on the entire noise wave contact surface, reducing noise transmission into the room. By appropriately setting the thickness of the sound-absorbing chamber 6, sufficient filling of the sound-absorbing cotton or polyurethane foam is ensured, reducing the probability of water ingress. The addition of injection holes 8 allows for the full injection of polyurethane foam and also acts as recesses to increase the contact area between the adhesive layer 3 and the outer aluminum, increasing the composite bonding strength. This composite glass achieves excellent overall noise reduction; the PVB film of the laminated glass absorbs vibrations, significantly reducing low-frequency noise, while the insulated glass effectively blocks mid-to-high-frequency noise such as horn noise and tire noise.

[0040] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0041] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A sound insulation structure for a thermally broken aluminum window, characterized in that, The outer aluminum of the window frame (1) and the outer aluminum of the window sash (2) facing the outside of the thermally broken aluminum alloy window are coated with an adhesive layer (3) and a protective plate (4). The protective panel (4) is made of aluminum alloy decorative material, and the adhesive layer (3) is specifically made of PVB film layer hot-pressed composite between two layers of aluminum material.

2. The sound insulation structure of the thermally broken aluminum window according to claim 1, characterized in that, The exposed narrow edges of the adhesive layer (3) and the protective plate (4) are sealed with weather-resistant adhesive.

3. The sound insulation structure of the thermally broken aluminum window according to claim 1, characterized in that, The thickness of the adhesive layer (3) is not less than 0.6 mm.

4. The sound insulation structure of the thermally broken aluminum window according to claim 1, characterized in that, The outer aluminum (1) of the window frame and the outer aluminum (2) of the window sash are provided with a soundproof chamber (6), which is filled with soundproof cotton or polyurethane foam.

5. The sound insulation structure of the thermally broken aluminum window according to claim 4, characterized in that, The thickness of the anechoic chamber (6) is between 5 and 8 millimeters.

6. The sound insulation structure of the thermally broken aluminum window according to claim 4, characterized in that, Multiple injection holes (8) are provided on the outer wall panels of the window frame aluminum (1) and the window sash aluminum (2), and the liquid polyurethane foam is injected from the injection holes (8); the adhesive layer (3) seals the injection holes (8).

7. The sound insulation structure of the thermally broken aluminum window according to claim 1, characterized in that, The glass of the thermally broken aluminum alloy window (5) specifically adopts double-glazed laminated glass and the outer glass adopts laminated glass.

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