Aluminum profile door and window structure capable of enhancing heat preservation and sound insulation
By setting sealing strips inside the aluminum profile door and window frame to separate the heat insulation cavity, intermediate cavity and airtight cavity, and filling them with aerogel and sound-absorbing cotton, the problem of thermal bridging effect of aluminum alloy frame is solved, and the thermal insulation and sound insulation performance of aluminum profile doors and windows is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI TIANFA ALUMINUM CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-01
AI Technical Summary
The frame structure of traditional aluminum profile doors and windows suffers from thermal bridging due to the high thermal conductivity of aluminum alloy, which significantly weakens their thermal insulation and soundproofing performance.
A sealing strip is installed inside the door and window frame to divide it into a heat insulation cavity, an intermediate cavity, and an airtight cavity. The heat insulation cavity is filled with aerogel, the intermediate cavity is lined with sound-absorbing cotton, the baffle extends the sound wave path, and the airtight cavity is lined with sound-absorbing cotton. Through the synergistic effect of materials and structure, heat and noise transmission are blocked.
It significantly improves the thermal insulation and sound insulation performance of doors and windows, reduces the reliance on double-glazed windows, and enhances overall energy efficiency.
Smart Images

Figure CN224187418U_ABST
Abstract
Description
A type of aluminum profile door and window structure with enhanced thermal insulation and soundproofing Technical Field
[0001] This utility model relates to the field of aluminum profile door and window technology, specifically to an aluminum profile door and window structure with enhanced thermal insulation and sound insulation. Background Technology
[0002] Aluminum profile door and window structure refers to a building envelope system that uses aluminum alloy profiles as the main frame, produces components with specific cross-sectional shapes through extrusion molding, and then assembles them with glass, hardware, sealing strips and other accessories. It has the characteristics of high strength, corrosion resistance and strong plasticity, and can meet the building functional requirements such as heat preservation, sound insulation and waterproofing.
[0003] Traditional aluminum profile doors and windows often employ double or triple-glazed windows, using inert gas or a vacuum layer within the glass interlayer to block heat conduction, thereby improving thermal insulation and soundproofing performance. However, existing technologies generally suffer from a critical flaw: the thermal and sound insulation design of the door and window frames themselves is severely inadequate. Since aluminum alloy is a highly thermally conductive material, if the frame structure is not specifically optimized, its thermal bridging effect will significantly weaken the overall performance of the structure. Therefore, this paper proposes an aluminum profile door and window structure that enhances thermal and sound insulation. Summary of the Invention
[0004] This utility model provides an aluminum profile door and window structure with enhanced thermal insulation and soundproofing. It uses a sealing strip to divide the interior of the door and window frame into a heat insulation cavity, an airtight cavity, and an intermediate cavity. Aerogel, sound-absorbing cotton, and a baffle strip are respectively installed inside each of these three cavities, comprehensively blocking heat transfer paths and dispersing sound wave energy, thereby solving the problems mentioned in the background art.
[0005] The door and window frames themselves have serious deficiencies in thermal insulation and soundproofing. Since aluminum alloy is a material with high thermal conductivity, if the frame structure is not specifically optimized, its thermal bridging effect will significantly weaken the overall performance of the structure.
[0006] To achieve the above objectives, the aluminum profile door and window structure with enhanced thermal insulation and soundproofing includes a door and window frame and glass installed inside the door and window frame. A sound insulation and thermal insulation component is installed inside the door and window frame. This component includes a pair of parallel sealing strips that divide the interior of the door and window frame into a heat insulation cavity, a middle cavity, and an airtight cavity. The heat insulation cavity is located on the outermost side of the door and window structure. The heat insulation cavity is filled with aerogel, and the airtight cavity is filled with sound-absorbing cotton. A baffle is installed inside the sealing strips to block the conduction of heat and noise.
[0007] In the above technical solution, by setting up a heat insulation cavity, an intermediate cavity, and an airtight cavity separated by parallel sealing strips inside the door and window frame, the heat insulation cavity is filled with aerogel to block heat conduction, the airtight cavity is filled with sound-absorbing cotton to absorb sound wave energy, and the intermediate cavity is equipped with baffles to extend the sound wave path and dissipate heat energy. Through the synergistic effect of the internal partitions of the door and window frame and the functional materials, the efficiency of heat and noise transmission through the door and window frame is reduced, thereby improving the overall thermal insulation and sound insulation performance of the door and window structure.
[0008] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0009] By installing sealing strips inside the door and window frame, the interior is divided into a heat insulation cavity, a middle cavity, and an airtight cavity. The heat insulation cavity is filled with aerogel to effectively reduce heat conduction, while the sound-absorbing cotton in the airtight cavity forms multiple layers of sound insulation. The middle cavity and its interior are equipped with baffles to further block the transmission paths of heat and noise. This structure specifically solves the problem of significant thermal bridging effect in traditional aluminum alloy frames, enhances the heat insulation and sound insulation capabilities of door and window frames, reduces the reliance on double-glazed windows, and improves the overall energy efficiency of the door and window structure. Attached Figure Description
[0010] Figure 1 is an exploded view of the overall structure of this utility model;
[0011] Figure 2 is a schematic diagram of the internal structure of the door and window frame of this utility model;
[0012] Figure 3 is a side view of a partial structure of this utility model;
[0013] Figure 4 is an explosion diagram of the sound-absorbing cotton of this utility model;
[0014] Figure 5 is an enlarged schematic diagram of the structure at point A in Figure 3 of this utility model;
[0015] Figure 6 is a partial structural schematic diagram of the baffle of this utility model.
[0016] The meanings of the labels in the diagram are as follows:
[0017] 1. Door and window frames; 11. Glass; 2. Sound insulation and heat preservation components; 21. Heat insulation cavity; 22. Sealing strip; 23. Intermediate cavity; 24. Airtight cavity; 25. Sound-absorbing cotton; 26. Barrier strip; 27. Aerogel. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. 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.
[0019] Currently, the thermal insulation and soundproofing design of door and window frames is severely inadequate. Since aluminum alloy is a highly thermally conductive material, if the frame structure is not specifically optimized, its thermal bridging effect will significantly weaken the overall performance of the structure. This utility model provides an aluminum profile door and window structure with enhanced thermal insulation and soundproofing, as shown in Figures 1 and 2. It includes a sound insulation and thermal insulation component 2, a door and window frame 1, and glass 11 installed on the inner side of the door and window frame 1. The glass 11 is installed on the inner side of the door and window frame 1 by externally injecting sealant. The sound insulation and thermal insulation component 2 includes a heat insulation cavity 21. The intermediate cavity 23 and the airtight cavity 24 are respectively equipped with aerogel 27, baffle 26 and sound-absorbing cotton 25. Specifically, the intermediate cavity 23 is enclosed by sealing strips 22 arranged in parallel on both sides to form a sealed space. The sealed space can accumulate a certain amount of heat, thereby improving the heat preservation effect of the intermediate cavity 23. The uneven texture on its inner wall surface forms an irregular surface morphology. When sound waves enter the intermediate cavity 23, the uneven texture changes the reflection angle of the sound waves, forcing the sound waves to be scattered multiple times in the intermediate cavity 23, thereby dispersing the sound wave energy and reducing its propagation intensity.
[0020] Referring to Figures 3 and 5, the aluminum profile window and door frame 1 is directly exposed to the external environment, and the outside is exposed to extreme temperature differences more frequently. By placing the thermal insulation cavity 21 on the outside, after the window and door structure is installed, the high-efficiency thermal insulation layer of aerogel 27 can directly block external heat from being conducted to the indoor space through the aluminum profile, significantly reducing the impact of thermal bridging. Aerogel 27 is made from silica powder and is injected into the thermal insulation cavity 21 through a high-pressure injection molding process to form a continuous layered distribution. The layers are separated by built-in thin aluminum foil to ensure uniform filling. The nano-scale porous structure of aerogel 27 restricts the movement of air molecules, reducing heat convection and radiation. At the same time, the continuous layered distribution avoids the formation of local thermal bridges, achieving overall high-efficiency thermal insulation of the thermal insulation cavity 21.
[0021] Referring to Figures 5 and 6, the baffle 26 located inside the intermediate cavity 23 is a Z-shaped block cut from an aluminum alloy profile. Multiple Z-shaped blocks are continuously arranged along the inside of the sealing strip 22 to enhance the structural rigidity. During the heat insulation process of the heat insulation cavity 21, heat is generated. The accumulation of heat will cause the inside of the intermediate cavity 23 to become humid. The hydrogel layer on the outer wall surface of the baffle 26 is a composite of polyacrylamide and nano silica. They have hygroscopic properties, so they can absorb the moisture brought by the heat. After absorbing the moisture, the hydrogel maintains the heat insulation effect of the heat insulation cavity 21. At the same time, the baffle 26 formed by the continuous arrangement of Z-shaped blocks extends the sound wave reflection path and further dissipates the sound wave energy.
[0022] Referring to Figures 3 and 4, after the dissipated sound waves enter the airtight cavity 24, the sound-absorbing cotton 25 inside is made of polyester fiber and flame retardant composite. Its thickness is divided into three layers, which are arranged in a stepped manner from the outside to the inside. The outer side is the same as the heat insulation cavity 21. The porosity of each layer of sound-absorbing cotton 25 increases sequentially. The porous structure increases the contact area between the sound waves and the fiber surface. By utilizing the friction and viscous resistance of the air inside the pores, it can attenuate the sound wave energy of different frequencies layer by layer. Therefore, the sound waves entering from the outside will be blocked and absorbed by the progressively increasing sound-absorbing cotton 25, and a progressively decreasing attenuation will be produced, thereby achieving efficient sound insulation of the door and window structure.
[0023] Referring to Figures 1 and 2, a vacuum insulation plate is installed on the top inner wall of the intermediate cavity 23. The vacuum insulation plate is composed of two high-strength substrates sealed and welded together and fixed to the inner wall of the intermediate cavity 23 by butyl adhesive. The intermediate cavity 23 is located inside the door and window frame 1, and the glass 11 is installed inside the door and window frame 1 with the vacuum insulation plate located below the glass 11. Therefore, the vacuum insulation plate can effectively block the heat transfer between the glass 11 and the intermediate cavity 23 by eliminating the mediating effect of gas molecules on heat conduction.
[0024] Working principle: The door and window frame 1 serves as the main frame, supporting the glass 11 and fixing the sound insulation and heat preservation components 2. The aerogel 27 continuously distributed in the heat insulation cavity 21 restricts the movement of gas molecules through its nano-porous structure, reducing the efficiency of heat radiation and convection transfer. The baffle 26 in the intermediate cavity 23 extends the sound wave propagation path to achieve efficient sound insulation. Its surface hydrogel can absorb moisture and thus dissipate heat energy. The sound-absorbing cotton 25 filled in the airtight cavity 24 increases the contact area between the sound wave and the material through its porous structure. It consumes the sound wave energy by utilizing the air friction and viscous resistance in the pores. The heat insulation cavity 21, intermediate cavity 23, and airtight cavity 24 are all independent spaces formed by the sealing strip 22. Heat needs to pass through the heat insulation of the aerogel 27 and the dehumidification of the baffle 26 in sequence, while the sound wave needs to pass through the scattering of the baffle 26 and the energy absorption of the sound-absorbing cotton 25 in sequence. In this process, the material properties and path complexity are gradually weakened, and physical barrier is finally achieved.
[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A reinforced thermal and sound insulation aluminum profile door and window structure comprising a door and window frame (1) and a glass (11) mounted on the inner side of the door and window frame (1), characterized by: The door and window frame (1) is equipped with a sound insulation and heat preservation component (2). The sound insulation and heat preservation component (2) includes a pair of parallel sealing strips (22). The sealing strips (22) divide the interior of the door and window frame (1) into a heat insulation cavity (21), an intermediate cavity (23) and an airtight cavity (24). The heat insulation cavity (21) is located on the outermost side of the door and window structure. The heat insulation cavity (21) is filled with aerogel (27). The intermediate cavity (23) is equipped with a baffle (26) to block the conduction of heat and noise. The airtight cavity (24) is equipped with sound-absorbing cotton (25).
2. The aluminum profile door and window structure with enhanced thermal insulation and soundproofing according to claim 1, characterized in that: The intermediate cavity (23) forms a sealed space through two sealing strips (22), and the inner wall of the intermediate cavity (23) is provided with concave and convex textures to disperse sound wave energy.
3. The aluminum profile door and window structure with enhanced thermal insulation and soundproofing according to claim 1, characterized in that: The top inner wall of the intermediate cavity (23) is fitted with a vacuum insulation plate, and the vacuum insulation plate is located below the glass (11).
4. The thermally and acoustically insulated aluminum profiled door and window structure according to Claim 1, characterized in that: The sound-absorbing cotton (25) is set to a thickness of three layers, and the thickness of the three layers is arranged in an increasing order. The sound-absorbing cotton (25) is set to a porous structure.
5. The thermally and acoustically insulated aluminum profiled door and window structure according to claim 1, characterized in that: The baffle (26) is composed of multiple Z-shaped blocks arranged continuously, and the outer wall of the Z-shaped blocks is provided with hydrogel.
6. The thermally and acoustically insulated aluminum profiled door and window structure according to claim 1, characterized in that: The aerogel (27) is distributed in continuous layers and is used to uniformly fill the heat insulation cavity (21).