Efficient heat insulation profile structure of aluminum alloy window frame
By incorporating multiple thermal insulation barriers and a honeycomb structure within the aluminum alloy profile, the problems of poor thermal insulation and stress concentration in extreme climates are solved, achieving efficient thermal insulation and structural stability.
Patent Information
- Application Number
- CN202422928623.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-11-29
AI Technical Summary
Existing aluminum alloy profiles do not provide ideal thermal insulation under extreme climatic conditions. The insulation material is prone to aging or thermal expansion, which can lead to stress concentration and local deformation.
A hollow cavity is set inside the aluminum alloy profile, with a first thermal compensation layer and a second thermal compensation layer bonded to the inner wall, an inner thermal insulation strip and a composite thermal insulation layer, and reinforcing ribs on the outer surface. The ends are sealed to form a multi-layer thermal isolation barrier, utilizing the low expansion coefficient and honeycomb structure of carbon fiber and resin composite materials to disperse heat and stress.
It significantly reduces the thermal conductivity of aluminum alloy profiles, alleviates differences in thermal expansion, avoids stress concentration, maintains structural stability, and improves thermal insulation performance and resistance to deformation.
Smart Images
Figure CN223562688U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of aluminium alloy section bar, concretely relates to an aluminium alloy window frame high -efficient heat -insulation section bar structure. BACKGROUND
[0002] Aluminium alloy is the alloy of aluminium as base adding certain amount other alloying element, because its quality is lighter, beautiful and fire -resistant performance is good, is widely used in the manufacture of door and window frame, but the heat conductivity of aluminium alloy is strong, easily causes the loss of heat, can lead to the instability of indoor temperature, and then increases the energy consumption of refrigeration equipment or heating equipment.
[0003] At present, many aluminium alloy section bars improve the heat insulation performance by adding heat insulation strips or adopting hollow structures in the section bar, although the heat insulation strips or foamed materials are added in the aluminium alloy section bar, but due to the high thermal conductivity of aluminium alloy, this method is still difficult to achieve ideal heat insulation effect under extreme climate conditions, at the same time, due to the long-term effect of external environment, part of the heat insulation materials is easy to age or thermal expansion, leading to the decline of heat insulation effect, and thermal expansion may also cause stress concentration, making the local area of aluminium section bar deforms, therefore, the aluminium alloy window frame high -efficient heat -insulation section bar structure is proposed to solve the problems in the above. SUMMARY
[0004] In order to solve the above technical problems, the aluminium alloy window frame high -efficient heat -insulation section bar structure is provided, the technical scheme solves the problems in the above background technology that at present, many aluminium alloy section bars improve the heat insulation performance by adding heat insulation strips or adopting hollow structures in the section bar, although the heat insulation strips or foamed materials are added in the aluminium alloy section bar, but due to the high thermal conductivity of aluminium alloy, this method is still difficult to achieve ideal heat insulation effect under extreme climate conditions, at the same time, due to the long-term effect of external environment, part of the heat insulation materials is easy to age or thermal expansion, leading to the decline of heat insulation effect, and thermal expansion may also cause stress concentration, making the local area of aluminium section bar deforms.
[0005] In order to achieve the above purposes, the technical scheme adopted by the utility model is:
[0006] An aluminum alloy window frame efficient heat insulation profile structure, including aluminum alloy profile, the inside of the aluminum alloy profile is provided with a hollow cavity, the inner wall of the hollow cavity is bonded with a first thermal compensation layer, the inner side of the first thermal compensation layer is bonded with a plurality of uniformly distributed inner heat insulation strips, the edges of two adjacent inner heat insulation strips abut each other and are bonded by polyurethane glue to form a thermal insulation layer, the inner side of the inner heat insulation strip is bonded with a composite heat insulation layer, the inner side of the composite heat insulation layer is fixedly connected with a second thermal compensation layer, the inside of the hollow cavity is fixedly connected with a plurality of uniformly distributed reinforcing ribs, the outer surface of the aluminum alloy profile is provided with eight uniformly distributed connecting grooves, the both ends of the hollow cavity are bonded with end sealing blocks, and the end sealing blocks abut against the both ends of the first thermal compensation layer.
[0007] Preferably, the first thermal compensation layer and the second thermal compensation layer are both composed of carbon fibers and resin matrix, and a plurality of hexagonal through grooves are formed on the outer surfaces of the first thermal compensation layer and the second thermal compensation layer, and the plurality of hexagonal through grooves are uniformly distributed to form a honeycomb structure.
[0008] Preferably, the reinforcing rib is X-shaped and is made of aluminum alloy material.
[0009] Preferably, the inner heat insulation strip and the composite heat insulation layer are wrapped on the outer surface of the reinforcing rib, and the first thermal compensation layer and the second thermal compensation layer are fixedly connected with the outer surface of the reinforcing rib.
[0010] Preferably, the composite heat insulation layer is made of polyurethane foam and aluminum foil.
[0011] Preferably, the end sealing block is made of polytetrafluoroethylene.
[0012] Preferably, the inner heat insulation strip is made of polyamide.
[0013] The utility model has the beneficial effects compared with prior art:
[0014] The aluminum alloy window frame efficient heat insulation profile structure provided in the scheme sets the first and second thermal compensation layers, the carbon fiber and resin composite material of the thermal compensation layer has a lower thermal expansion coefficient compared with the aluminum alloy, can slow down the expansion difference caused by temperature change, meanwhile, the carbon fiber material itself also has higher strength and rigidity, can effectively resist the deformation caused by thermal expansion, keep the structure stable, the honeycomb structure formed by the hexagonal through grooves on the surface of the thermal compensation layer can improve the thermal resistance, meanwhile, disperse heat, reduce the heat conduction through the aluminum alloy profile, thereby reducing the thermal bridge effect, the distribution of the honeycomb structure also helps to disperse the stress caused by temperature difference, can effectively alleviate the thermal expansion difference between the aluminum alloy profile and the heat insulation material, reduce stress concentration, thereby avoiding the deformation problem of local area, the X-shaped reinforcing rib structure can further disperse the stress caused by temperature difference, reduce the stress concentration of local area, avoid the aluminum alloy profile from cracking or deforming due to stress concentration.
[0015] In the scheme, the inner heat insulation strip, the composite heat insulation layer, the hollow cavity and the thermal compensation layer jointly act to form multiple thermal isolation barriers, which can significantly reduce the thermal conductivity of the aluminum alloy profile. BRIEF DESCRIPTION OF DRAWINGS
[0016] Fig. 1 It is a structural schematic view of the utility model;
[0017] Fig. 2 It is a structural schematic view of the hollow cavity in the utility model.
[0018] Reference signs in the drawings are:
[0019] 1, aluminum alloy profile; 2, hollow cavity; 3, first thermal compensation layer; 4, inner heat insulation strip; 5, composite heat insulation layer; 6, connecting sliding groove; 7, second thermal compensation layer; 8, reinforcing rib; 9, end sealing block. DETAILED DESCRIPTION
[0020] The following description is used to disclose the utility model so that those skilled in the art can implement the utility model. The preferred embodiments in the following description are only as examples, and those skilled in the art can think of other obvious modifications.
[0021] Reference Figs. 1-2As shown, an aluminum alloy window frame efficient heat insulation profile structure, comprising an aluminum alloy profile 1, the inside of the aluminum alloy profile 1 is provided with a hollow cavity 2, the inner wall of the hollow cavity 2 is bonded with a first thermal compensation layer 3, the inner side of the first thermal compensation layer 3 is bonded with a plurality of evenly distributed inner heat insulation strips 4, the edges of the adjacent two inner heat insulation strips 4 abut each other and are bonded by polyurethane glue to form a thermal insulation layer, the inner side of the inner heat insulation strip 4 is bonded with a composite heat insulation layer 5, the inner side of the composite heat insulation layer 5 is fixedly connected with a second thermal compensation layer 7, the inside of the hollow cavity 2 is fixedly connected with a plurality of evenly distributed reinforcing ribs 8, the outer surface of the aluminum alloy profile 1 is provided with eight evenly distributed connecting sliding grooves 6, both ends of the hollow cavity 2 are bonded with end sealing blocks 9, and the end sealing blocks 9 abut the two ends of the first thermal compensation layer 3.
[0022] Further, the first thermal compensation layer 3 and the second thermal compensation layer 7 are both composed of carbon fibers and resin matrix, a plurality of hexagonal through grooves are formed on the outer surfaces of the first thermal compensation layer 3 and the second thermal compensation layer 7, the plurality of hexagonal through grooves are evenly distributed to form a honeycomb structure, and the first thermal compensation layer 3 and the second thermal compensation layer 7 are respectively used to reduce the influence of thermal expansion of the aluminum alloy profile 1 and the composite heat insulation layer 5.
[0023] Further, since the thermal expansion coefficient of the aluminum alloy is large, deformation is easy to occur when the temperature changes, which leads to unstable structure and further leads to the decline of heat insulation effect, while the thermal expansion coefficient of the carbon fiber and resin composite material in the thermal compensation layer is low, the low expansion characteristic can effectively inhibit the expansion difference of the aluminum alloy caused by temperature change, thereby reducing the stress concentration and deformation caused by the expansion of the aluminum alloy, keeping the structure stable, ensuring that the performance of the heat insulation layer will not be affected by the deformation, and the hexagonal through grooves on the surface of the thermal compensation layer form a honeycomb structure, since there are many small gaps in the honeycomb structure, heat must be conducted through a relatively complex path, which increases the conduction distance and resistance of heat through this structure, therefore, the speed of heat transfer in the honeycomb through groove structure is slow, and the heat flow is effectively hindered, thereby improving the thermal resistance, and the design of the honeycomb structure makes the heat no longer conduct along a single path, but is guided to multiple directions, the hexagonal through groove structure has good symmetry and uniformity, making the heat conduction path complex and diverse, when the heat propagates inside the honeycomb structure, it will be dispersed to multiple smaller areas, avoiding the concentration of heat in a certain position, through this design, the heat is more evenly distributed in the whole thermal compensation layer, avoiding local high temperature, thereby reducing the thermal expansion difference and thermal stress of the material.
[0024] Further, the reinforcing ribs 8 are in the shape of an X, made of aluminum alloy material, and are distributed inside the profile, capable of uniformly distributing stress, when external forces or thermal expansion forces act on the profile, the reinforcing ribs 8 can evenly distribute external stress to a wider area by enhancing the stiffness and bending resistance of the profile, thereby avoiding local stress concentration.
[0025] Further, the inner thermal barrier 4 and the composite thermal barrier 5 are wrapped around the outer surface of the reinforcing ribs 8, and the first thermal compensation layer 3 and the second thermal compensation layer 7 are fixedly connected to the outer surface of the reinforcing ribs 8.
[0026] Further, the composite thermal barrier 5 is made of polyurethane foam and aluminum foil, the aluminum foil is a metal film, hot-pressed on the surface of the polyurethane foam, the polyurethane foam has low thermal conductivity, which can effectively insulate heat transfer, and the reflectivity of the aluminum foil can block radiant heat, further improving the thermal insulation effect, the polyurethane foam itself is light in weight, which can reduce the overall weight, after being combined with the aluminum foil, it can not only maintain the thermal insulation effect, but also not increase too much burden, the aluminum foil has excellent moisture-proof and corrosion-resistant properties, which can enhance the durability of the composite material in humid or corrosive environments, prevent the polyurethane foam from degrading due to moisture, and the reflective effect of the aluminum foil surface on thermal radiation effectively reduces the transfer of heat, especially in high temperature environments, which can further improve the thermal insulation effect of the material.
[0027] Further, the end sealing block 9 is made of polytetrafluoroethylene, which is used to seal both ends of the hollow cavity 2 to prevent heat from being transferred or leaking through the ends, and it is in close contact with the ends of the thermal compensation layer, which helps to further improve the thermal insulation performance and reduce heat loss from the ends, maintaining the thermal insulation effect of the entire structure, polytetrafluoroethylene has very low thermal conductivity, which can effectively prevent heat from being transferred or leaking through the sealed area of the end, helping to maintain the thermal insulation effect inside the hollow cavity 2, while polytetrafluoroethylene has excellent high-temperature resistance and can remain stable within a wide temperature range, which makes the end sealing block 9 not to be performance-degraded or deformed due to temperature changes in environments with large temperature fluctuations, so it can maintain good sealing effect for a long time and ensure that the thermal insulation performance is not affected by temperature changes.
[0028] Further, the inner thermal barrier 4 is made of polyamide, which has low thermal conductivity and good thermal insulation properties, which can effectively slow down the transfer of heat through the inner thermal barrier 4 and improve the overall thermal insulation performance, when used in combination with the composite thermal barrier 5, polyamide can form a multiple thermal insulation barrier, further enhancing the thermal insulation effect.
[0029] Working principle: the aluminum alloy profile 1 in daily use, the inner heat insulation strip 4 and the composite heat insulation layer 5 in the inside jointly act, form a heat isolation barrier, the polyamide is used as the material of the inner heat insulation strip 4, has lower thermal conductivity, can effectively slow down heat transfer, and the polyurethane foam is used as the material of the composite heat insulation layer 5 and utilizes its low thermal conductivity and light weight characteristics to insulate heat, further improves the heat insulation performance, the aluminum foil is used as the surface material of the composite heat insulation layer 5 and can reflect radiant heat, prevents heat transfer and accumulation, the hexagonal through slot of the first heat compensation layer 3 and the second heat compensation layer 7 is set on the surface, constitutes the honeycomb structure, the honeycomb structure passes through increasing the path complexity of heat conduction, increases the distance and resistance of heat conduction, thereby effectively slows down the heat conduction speed, improves the thermal resistance performance, and heat is guided to multiple directions, does not concentrate in a position, avoids local overheating and the material stress caused by uneven thermal expansion, the X-shaped reinforcing rib 8 in the structure strengthens the rigidity and bending resistance of the profile, it can uniformly distribute the stress applied from outside to a wider area, avoids local stress concentration, further enhances the stability of the aluminum alloy profile 1, avoids excessive deformation when subjected to external force or thermal expansion force, further improves the anti-deformation ability of the whole system, the end sealing block 9 is made of polytetrafluoroethylene material, has very low thermal conductivity, can effectively prevent heat loss or transmission through the end, simultaneously, the polytetrafluoroethylene material has excellent high-temperature resistance, can maintain stable sealing effect, is not easy to deform in the environment with greater temperature fluctuation, thereby effectively maintaining the heat isolation effect inside the hollow cavity 2.
[0030] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection required by the present application is defined by the appended claims and their equivalents.
Claims
1. An aluminium alloy window frame high efficient thermal insulation profile structure, characterized in that, The application relates to an aluminum alloy profile (1) provided with a hollow cavity (2) in the inside, the inner wall of the hollow cavity (2) is bonded with a first thermal compensation layer (3), the inner side of the first thermal compensation layer (3) is bonded with a plurality of uniformly distributed inner heat insulation strips (4), the edges of two adjacent inner heat insulation strips (4) abut against each other and are bonded by polyurethane glue to form a thermal insulation layer, the inner side of the inner heat insulation strip (4) is bonded with a composite heat insulation layer (5), the inner side of the composite heat insulation layer (5) is fixedly connected with a second thermal compensation layer (7), the inside of the hollow cavity (2) is fixedly connected with a plurality of uniformly distributed reinforcing ribs (8), eight uniformly distributed connecting sliding grooves (6) are formed in the outer surface of the aluminum alloy profile (1), and end sealing blocks (9) are bonded at both ends of the hollow cavity (2) and abut against both ends of the first thermal compensation layer (3).
2. An aluminum alloy window frame high efficient thermal insulation profile structure according to claim 1, characterized in that: The first thermal compensation layer (3) and the second thermal compensation layer (7) are both formed by compounding carbon fibers and a resin matrix, a plurality of hexagonal through grooves are formed in the outer surfaces of the first thermal compensation layer (3) and the second thermal compensation layer (7), and the plurality of hexagonal through grooves are uniformly distributed to form a honeycomb structure.
3. The high efficient thermal insulated profile structure of aluminum alloy window frame according to claim 1, characterized in that: The reinforcing rib (8) is X-shaped and is made of an aluminum alloy material.
4. The high efficient thermal insulated profile structure of aluminum alloy window frame according to claim 1, characterized in that: The inner heat insulation strip (4) and the composite heat insulation layer (5) are wrapped on the outer surface of the reinforcing rib (8), and the first thermal compensation layer (3) and the second thermal compensation layer (7) are fixedly connected with the outer surface of the reinforcing rib (8).
5. The high efficient thermal insulated profile structure of aluminum alloy window frame according to claim 1, characterized in that: The composite heat insulation layer (5) is made of polyurethane foam and aluminum foil.
6. The high efficient thermal insulated profile structure of aluminum alloy window frame according to claim 1, characterized in that: The end sealing block (9) is made of polytetrafluoroethylene.
7. The high efficient thermal insulated profile structure of aluminum alloy window frame according to claim 1, characterized in that: The inner heat insulation strip (4) is made of polyamide. The inner heat insulation strip (4) is made of polyamide.