Broken bridge aluminum profile with low heat conductivity

Abstract

The utility model discloses a broken bridge aluminum profile with low heat conduction. A first aluminum frame and a second aluminum frame which are distributed inside and outside form a main body frame and are connected through two heat insulation strips, and basic heat insulation separation is guaranteed. A coating frame is arranged between the heat insulation strips, and the coating frame is filled with aerogel strips with high porosity and a certain thickness, so that transverse conduction of heat is hindered. A vacuum heat insulation plate is fixed in each cavity of the aluminum frame, a heat conduction medium is greatly reduced in a vacuum environment, and heat is reflected back by the arc-shaped reflection grooves in the two sides of the plate according to the light reflection principle, so that permeation into the aluminum frame is reduced. Meanwhile, the nano silicon dioxide coatings on the two faces of the vacuum heat insulation plate can reflect part of heat, change the heat transfer path, block water vapor and guarantee the heat insulation stability. According to the broken bridge aluminum profile, through the synergistic effect of multiple innovative heat insulation structures, the heat insulation performance is remarkably improved, the structure is stable, the building energy-saving requirement can be effectively met, the broken bridge aluminum profile is particularly suitable for the field of doors and windows, and a high-quality material selection scheme is provided for building energy saving.

Description

Technical Field

[0001] This utility model relates to the field of thermally broken aluminum technology, specifically a thermally broken aluminum profile with low thermal conductivity. Background Technology

[0002] As a mainstream material for modern building doors and windows, the thermal insulation performance of thermally broken aluminum profiles directly affects the building's energy consumption level. Traditional thermally broken aluminum profiles typically use simple thermal break strips to separate the inner and outer aluminum frames. While this reduces direct heat conduction through the aluminum frame to some extent, it still has many shortcomings. On the one hand, the thermal insulation capacity of conventional thermal break strips is limited and cannot meet increasingly stringent energy-saving standards; on the other hand, the internal cavity of the aluminum frame lacks effective thermal insulation measures, allowing heat to easily accumulate and conduct within the cavity, leading to more frequent heat exchange between indoors and outdoors, and increasing the energy consumption of air conditioning, heating, and other equipment. Summary of the Invention

[0003] (a) Technical problems to be solved

[0004] The technical problem this invention aims to solve is that conventional thermal insulation strips have limited thermal insulation capabilities and are difficult to meet increasingly stringent energy-saving standards. On the other hand, the internal cavity of the aluminum frame lacks effective thermal insulation measures, and heat easily accumulates and is conducted inside the cavity, leading to frequent heat exchange between indoors and outdoors.

[0005] (II) Technical Solution

[0006] To solve the above problems, this utility model provides the following technical solution:

[0007] A low thermal conductivity thermally broken aluminum profile, which encloses aluminum frame one and aluminum frame two, the aluminum frame one and aluminum frame two are connected by two thermal insulation strips, and a covering frame is provided between the two thermal insulation strips. The upper and lower end faces of the covering frame are respectively fixedly connected to the two thermal insulation strips, and the interior of the covering frame is filled with aerogel strips.

[0008] A vacuum heat insulation plate is fixedly installed in the cavity of both aluminum frame one and aluminum frame two, and multiple arc-shaped reflective grooves are provided on both sides of the vacuum heat insulation plate.

[0009] Both sides of the vacuum insulation panel are coated with a layer of nano-silica.

[0010] Furthermore, the aluminum frame one has a set of first grooves symmetrically arranged on the side surface near the heat insulation strip, and the aluminum frame two has a set of second grooves symmetrically arranged on the side surface near the heat insulation strip.

[0011] Furthermore, the two ends of the heat insulation strip are respectively inserted into the first groove and the second groove.

[0012] Furthermore, the heat insulation strip is made of PA66 material, and the covering frame is also made of PA66 material.

[0013] Furthermore, the porosity of the aerogel strip is between 80% and 99%.

[0014] Furthermore, the thickness of the aerogel strip is not less than 5 mm.

[0015] Furthermore, the thickness of the nano-silica coating is 1-3 micrometers.

[0016] (III) Beneficial Effects

[0017] The beneficial effects of this utility model are:

[0018] This invention utilizes a thermal insulation system comprised of a gel strip and a covering frame, playing a crucial role in thermal insulation between aluminum frames. The aerogel strip, with its ultra-high porosity and sufficient thickness, significantly improves the thermal insulation efficiency between the aluminum frames compared to traditional methods relying solely on thermal strips. This effectively inhibits heat conduction in the lateral direction of the profile, reducing the possibility of direct heat exchange between indoors and outdoors through the aluminum frame. Simultaneously, the vacuum insulation panel, combined with arc-shaped reflective grooves and a nano-silica coating, comprehensively strengthens the thermal insulation defense from within the aluminum frame. The vacuum environment fundamentally cuts off the main path of heat conduction, while the arc-shaped reflective grooves cleverly utilize the principle of light reflection to reflect heat back to the outside, preventing heat from penetrating deep into the aluminum frame. The nano-silica coating further reflects heat through its own heat reflection properties, while simultaneously blocking moisture intrusion. The synergistic effect of these three elements significantly extends the thermal insulation life of the profile. Attached image description:

[0019] Figure 1 This is a side view of the present invention;

[0020] Figure 2 This is a side view of aluminum frame one and aluminum frame two of this utility model;

[0021] Figure 3 This is a schematic diagram illustrating the setup of the nano-silica coating and vacuum insulation plate of this utility model.

[0022] The markings in the diagram are: 1-Aluminum frame one, 2-Aluminum frame two, 3-Insulation strip, 4-Wrapping frame, 5-Aerogel strip, 6-Vacuum insulation board, 7-Arc-shaped reflective groove, 8-Nano silica coating, 9-First groove, 10-Second groove. Detailed Implementation

[0023] 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.

[0024] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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] Please see Figures 1-3 The example shown is a low thermal conductivity thermally broken aluminum profile, which is composed of an aluminum frame 1, an aluminum frame 2, a thermal insulation strip 3, a covering frame 4, an aerogel strip 5, a vacuum insulation board 6, an arc-shaped reflective groove 7, a nano-silica coating 8, a first groove 9, and a second groove 10.

[0026] Aluminum frame 1 and aluminum frame 2, serving as the main frame components of the profile, are located on the inner and outer sides of the profile, respectively, and are connected by two thermal insulation strips 3. The thermal insulation strips 3 are made of PA66 material, with a rectangular cross-section, possessing good mechanical properties and capable of withstanding certain external tensile and compressive forces, ensuring the reliability of the connection between the aluminum frames. Between the two thermal insulation strips 3, a covering frame 4 is installed. The covering frame 4 is also injection molded from PA66 material, and its upper and lower ends are tightly fixed to the thermal insulation strips 3 through a special bonding process or mechanical connection method, forming a closed cavity structure. This cavity is filled with aerogel strips 5, a new type of thermal insulation material with ultra-high porosity, precisely controlled between 80% and 99%, and a thickness of not less than 5mm. The microstructure of the aerogel strips 5 exhibits extremely fine and uniformly distributed pores. These pores contain almost no air, making it difficult for heat to be conducted through the collision of gas molecules, thus possessing superior thermal insulation capabilities and effectively preventing the lateral transfer of heat between the aluminum frames.

[0027] Inside the cavities of aluminum frame 1 and aluminum frame 2, a vacuum insulation panel 6 is installed. The vacuum insulation panel 6 is first evacuated to remove as much air as possible, minimizing the amount of air—the primary medium for heat conduction—and significantly reducing the rate of heat transfer through the panel. The two sides of the vacuum insulation panel 6 are not smooth planes, but rather have multiple evenly distributed arc-shaped reflective grooves 7. These grooves 7 resemble small parabolic grooves, designed based on the law of reflection of light. When heat is transferred to the surface of the vacuum insulation panel 6 in the form of thermal radiation, the arc-shaped reflective grooves 7 reflect the heat back at a specific angle, changing the direction of heat transfer and reducing heat penetration into the aluminum frame. Furthermore, a nano-silica coating 8 is applied to both sides of the vacuum insulation panel 6 using an advanced coating process, with a thickness strictly limited to 1-3 micrometers. The nano-silica coating 8 consists of silica particles with a nanometer-sized particle size, tightly packed to form a dense film. From a microscopic perspective, the nano-silica coating 8 has high surface energy. When heat comes into contact with the coating surface, some of the heat is absorbed by the atoms or molecules on the coating surface and then reflected to the outside in the form of thermal radiation, thereby realizing the reflection and transfer of heat and reducing heat loss. At the same time, the nano-silica coating 8 also has good moisture-proof performance, which can prevent external water vapor from penetrating into the interior of the vacuum insulation panel 6, avoid the decrease in heat insulation performance due to water vapor condensation, and ensure that the vacuum insulation panel 6 is always in good working condition.

[0028] Example 1:

[0029] To further optimize the connection stability between the thermal insulation strip 3 and the aluminum frame, a set of first grooves 9 are symmetrically formed on the side of the aluminum frame 1 near the thermal insulation strip 3. The cross-sectional shape of the first groove 9 matches the end shape of the thermal insulation strip 3 to ensure that the thermal insulation strip 3 can be tightly embedded therein. Similarly, a set of second grooves 10 are also symmetrically formed on the side of the aluminum frame 2 near the thermal insulation strip 3. The two ends of the thermal insulation strip 3 are precisely inserted into the first groove 9 and the second groove 10, respectively. This fitting method not only enhances the firmness of the connection but also reduces heat conduction through the connection part to a certain extent, thereby improving the overall thermal insulation effect.

[0030] The embodiments are detailed, and the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the present invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A low thermally conductive broken bridge aluminum profile, characterized by: Aluminum frame one (1) and aluminum frame two (2) are wrapped. Aluminum frame one (1) and aluminum frame two (2) are connected by two heat insulation strips (3). A covering frame (4) is also provided between the two heat insulation strips (3). The upper and lower end faces of the covering frame (4) are fixedly connected to the two heat insulation strips (3) respectively. The interior of the covering frame (4) is filled with aerogel strips (5). A vacuum heat insulation plate (6) is fixed in the cavity of both aluminum frame one (1) and aluminum frame two (2), and multiple arc-shaped reflective grooves (7) are provided on both sides of the vacuum heat insulation plate (6); The vacuum insulation panel (6) has a layer of nano-silica coating (8) on both sides.

2. A low thermal conductive broken bridge aluminum profile according to claim 1, characterized in that: The aluminum frame one (1) has a set of first grooves (9) symmetrically arranged on the side surface near the heat insulation strip (3), and the aluminum frame two (2) has a set of second grooves (10) symmetrically arranged on the side surface near the heat insulation strip (3).

3. A low thermal conductive broken bridge aluminum profile according to claim 2, characterized in that: The two ends of the heat insulation strip (3) are respectively inserted into the first groove (9) and the second groove (10).

4. A low thermal conductive broken bridge aluminum profile according to claim 3, characterized in that: The heat insulation strip (3) is made of PA66 material, and the covering frame (4) is made of PA66 material.

5. The low thermal conductivity thermally broken aluminum profile according to claim 4, characterized in that: The porosity of the aerogel strip (5) is between 80% and 99%.

6. A low thermal conductive broken bridge aluminum profile according to claim 5, characterized in that: The thickness of the aerogel strip (5) is not less than 5 mm.

7. A low thermal conductive broken bridge aluminum profile according to claim 6, characterized in that: The thickness of the nano-silica coating (8) is 1-3 micrometers.

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