Split combined heat insulation strip and broken bridge aluminum profile comprising same
By using a split-type modular thermal insulation strip design, the problems of complex production and thermal bridging effect of aluminum alloy door and window thermal insulation strips are solved, achieving the effects of easy installation, reduced maintenance costs, and improved thermal insulation performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN NANHAI YILE ENG PLASTICS CO LTD
- Filing Date
- 2025-08-12
- Publication Date
- 2026-07-14
AI Technical Summary
Existing thermal break strips for aluminum alloy doors and windows suffer from complex manufacturing processes, high maintenance costs, and severe thermal bridging effects. Furthermore, the design of the connection structure of split thermal break strips is unreasonable, causing heat to be rapidly transferred through the connection points, thus reducing thermal insulation performance.
The structure adopts a split-type combined thermal insulation strip structure. Through the combination of the first thermal insulation strip, the second thermal insulation strip and the connecting strip, multiple thermal insulation spaces and tortuous heat conduction paths are formed. By utilizing the oblique setting of the connecting units and the design of shared components, the thermal bridging effect is avoided, and the connection stability and thermal insulation performance are enhanced.
It facilitates production, transportation and installation, reduces maintenance costs, improves thermal insulation performance and structural stability, extends the heat conduction path, reduces thermal bridging effect, and enhances thermal insulation performance.
Smart Images

Figure CN224496214U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of thermally broken aluminum alloy doors and windows, and in particular to a split-type combined thermal insulation strip and a thermally broken aluminum profile containing the same. Background Technology
[0002] In the field of building doors and windows, aluminum alloy profiles are widely used due to their high strength and corrosion resistance. However, aluminum alloys are highly thermally conductive materials, and heat can be easily transferred quickly through the profiles, leading to increased energy consumption when there is a large temperature difference between indoors and outdoors. To solve this problem, thermal break strips, as the core component of thermal break structures, have emerged. They can effectively block the heat conduction path of aluminum alloy profiles and improve the thermal insulation performance of doors and windows.
[0003] Currently, some thermal insulation strips adopt an integral structure, which ensures a certain structural strength, but the manufacturing process is complex, and the entire strip needs to be replaced when a part is damaged, resulting in high maintenance costs. Meanwhile, the existing split-type thermal insulation strips have an unreasonable connection structure design, making it easy for thermal bridges to form at the joints, causing heat to be rapidly transferred through the connection points and weakening the insulation effect. At the same time, some thermal insulation strips have a simple cavity structure, failing to fully utilize the insulation effect of the air layer and lacking effective air convection suppression design, allowing heat to be easily transferred through air convection within the cavity, further reducing insulation performance. Utility Model Content
[0004] The purpose of this utility model is to provide a split-type combined thermal insulation strip and a thermally broken aluminum profile containing the same, so as to solve one or more technical problems existing in the prior art, and at least provide a beneficial option or create conditions.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0006] This utility model provides a split-type combined thermal insulation strip, comprising:
[0007] First thermal insulation strip;
[0008] The second heat insulation strip is disposed below the first heat insulation strip, thereby defining a first space between the first heat insulation strip and the second heat insulation strip;
[0009] A connecting row, located in the first space, the connecting row includes at least one connecting unit, the connecting unit comprising:
[0010] The third heat insulation strip is connected at its upper and lower ends to the lower part of the first heat insulation strip and the upper part of the second heat insulation strip, respectively.
[0011] The fourth heat insulation strip is connected at its upper and lower ends to the lower part of the first heat insulation strip and the upper part of the second heat insulation strip, respectively.
[0012] The connecting strip is angled as a whole, so that the lower end of the connecting strip is connected to the lower part of the third heat insulation strip, and the upper end of the connecting strip is connected to the upper part of the fourth heat insulation strip.
[0013] In this technical solution, a modular structure is formed by combining the first and second thermal insulation strips and connecting strips. This facilitates production, transportation, and installation, and allows for individual replacement in case of partial damage, reducing maintenance costs. In the multiple connecting units, the ends of adjacent connecting strips are staggered vertically to prevent direct and rapid heat transfer from traditional butt-joint or continuous connecting strip structures, which could lead to thermal bridges at the connection points. This extends the heat conduction path, reduces the thermal bridging effect, and improves insulation performance. The connecting units initially divide the first space into multiple insulation spaces, and the connecting strips further divide these spaces diagonally into two triangular angled spaces, making the heat transfer path in the first space more tortuous and enhancing the insulation effect.
[0014] As an extension of the above solution: the connecting strip includes multiple connecting units arranged sequentially. In any two adjacent connecting units, the fourth thermal insulation strip in the connecting unit on the left and the third thermal insulation strip in the connecting unit on the right are the same component. The sequential arrangement of multiple connecting units and the sharing of components between adjacent units simplifies the structure of the connecting strip, reduces material usage, and lowers production costs. Simultaneously, the integrated connection method enhances the integrity and stability of the connecting strip, avoiding the loosening problems that may occur when connecting multiple independent units.
[0015] As an extension of the above solution, the connecting strip is integrally molded. This ensures the tightness and strength of the connection between the various parts of the connecting unit, reduces assembly steps, and improves production efficiency.
[0016] As an extension of the above solution: the first thermal insulation strip is either an I-type thermal insulation strip or a C-type thermal insulation strip. The I-type structure is simple and low in cost, and is suitable for scenarios where the connection strength requirement is not high; the C-type structure has a tighter engagement with the profile and better connection stability, and is suitable for occasions with greater stress.
[0017] As an extension of the above solution: the second thermal insulation strip is an I-type or C-type thermal insulation strip, and a supporting reinforcement frame is provided at the bottom of the second thermal insulation strip. The supporting reinforcement frame enhances the structural strength and load-bearing capacity of the second thermal insulation strip, and can better support the overall structure, especially when the doors and windows are subjected to greater pressure, it can effectively prevent the second thermal insulation strip from deforming.
[0018] As an extension of the above solution: the supporting and reinforcing frame is provided with several ribs, which divide the supporting and reinforcing frame into several second spaces. The ribs enhance the deformation resistance of the supporting and reinforcing frame, while the second spaces utilize the thermal insulation effect of the air layer to further improve the overall thermal insulation performance of the thermal insulation strip.
[0019] As an extension of the above solution: the lower part of the first heat insulation strip and the upper part of the second heat insulation strip are respectively provided with several protruding strips, and the upper and lower ends of the third and fourth heat insulation strips are provided with fork arms corresponding to the protruding strips. This extended solution achieves precise positioning and connection between the first heat insulation strip, the connecting strip, and the second heat insulation strip, ensuring the stability and reliability of the connection.
[0020] As an extension of the above solution: the end of the fork arm abuts against the wall surface of the first and / or second thermal insulation strip, and an opening is provided at the abutment, which engages with the protruding strip. This extended solution's connection method can better transmit force, reducing loosening and detachment of the connection when the thermal insulation strip is subjected to external forces (such as vibrations from opening and closing doors and windows, or wind pressure), strengthening the overall structure's resistance to deformation, and also helping to improve the airtightness and watertightness of the thermal insulation strip, indirectly improving the thermal insulation effect.
[0021] As an extension of the above solution: the lengths of the third and fourth thermal insulation strips are equal to or greater than the height of the first space. The length design of the third and fourth thermal insulation strips in this extension solution ensures that they can fully support the first and second thermal insulation strips, ensuring the stability of the first space and avoiding structural loosening or deformation due to insufficient length.
[0022] On the other hand, this utility model also provides a thermally broken aluminum profile, including a split-type combined thermal insulation strip as described above. The thermally broken aluminum profile using this split-type combined thermal insulation strip possesses all the advantages of the aforementioned thermal insulation strip, effectively blocking heat conduction between indoors and outdoors, improving the thermal insulation performance of the thermally broken aluminum profile, while also enhancing the structural stability and service life of the thermally broken aluminum profile, and expanding its application range. Attached Figure Description
[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0024] Figure 1 This is a schematic diagram of the combined thermal insulation strip in the embodiment;
[0025] Figure 2 This is a schematic diagram of the connection unit in the embodiment;
[0026] Figure 3 This is a schematic diagram of the structure of a connection row with multiple connection units in an embodiment.
[0027] In the attached diagram: 100: First thermal insulation strip, 200: Second thermal insulation strip, 210: Reinforcing frame, 211: Rib, 300: Connecting strip, 310: Connecting unit, 311: Third thermal insulation strip, 312: Fourth thermal insulation strip, 310a: Connecting unit located on the left side, 312a: Fourth thermal insulation strip of the connecting unit located on the left side, 310b: Connecting unit located on the right side, 311b: Third thermal insulation strip of the connecting unit located on the right side, 313: Connecting strip, 320: Fork arm, 321: Opening, 400: Protruding strip. Detailed Implementation
[0028] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0029] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional 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.
[0030] In the description of this utility model, if there are words such as "several", they mean one or more, "multiple" means two or more, "greater than", "less than", "exceeding" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself.
[0031] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0032] Reference Figures 1 to 3 The following are several embodiments of a split-type combined thermal insulation strip and a thermally broken aluminum profile containing the present invention.
[0033] An embodiment of this utility model provides a split-type combined thermal insulation strip, such as... Figure 1 and Figure 2 As shown, it includes:
[0034] First thermal insulation strip 100;
[0035] The second heat insulation strip 200 is disposed below the first heat insulation strip 100, thereby defining a first space between the first heat insulation strip 100 and the second heat insulation strip 200;
[0036] A connecting bar 300, located in the first space, includes at least one connecting unit 310, the connecting unit 310 comprising:
[0037] The third heat insulation strip 311 is connected at its upper and lower ends to the lower part of the first heat insulation strip 100 and the upper part of the second heat insulation strip 200, respectively.
[0038] The fourth heat insulation strip 312 is connected at its upper and lower ends to the lower part of the first heat insulation strip 100 and the upper part of the second heat insulation strip 200, respectively.
[0039] The connecting strip 313 is angled as a whole, so that the lower end of the connecting strip 313 is connected to the lower part of the third heat insulation strip 311, and the upper end of the connecting strip 313 is connected to the upper part of the fourth heat insulation strip 312.
[0040] In this embodiment, a modular structure is formed by combining the first thermal insulation strip, the second thermal insulation strip, and the connecting strip, which facilitates production, transportation, and installation. Individual parts can be replaced if damaged, reducing maintenance costs. The connecting strip is angled and its two ends are connected to the lower part of the third thermal insulation strip and the upper part of the fourth thermal insulation strip, respectively. This effectively extends the heat conduction path. Taking a single connecting unit as an example, when heat is transferred from left to right, the heat needs to pass through the first space on the left side of the third thermal insulation strip, the third thermal insulation strip, the angle between the third thermal insulation strip and the connecting strip, the connecting strip, the angle between the connecting strip and the fourth thermal insulation strip, the fourth connecting strip, and the first space on the right side of the fourth thermal insulation strip, resulting in a longer heat conduction path. In multiple connecting units, the ends of adjacent connecting strips are staggered vertically to prevent heat from being directly and rapidly transferred from a traditional butt-joint connecting strip structure or a continuous connecting strip structure, thus avoiding the formation of thermal bridges at the connection points. This embodiment extends the heat conduction path, reduces the thermal bridge effect, and improves thermal insulation performance.
[0041] In this embodiment, the upper and lower ends of the connecting strip abut against the lower part of the first thermal insulation strip and the upper part of the second thermal insulation strip, providing rigid support for the structure of the first space. This can disperse the external forces borne by the entire combined thermal insulation strip, such as wind pressure and stress generated by the thermal expansion and contraction of the profile, to each connecting unit, avoiding local stress concentration, improving the overall deformation resistance of the thermal insulation strip, and ensuring the long-term stability of the connection with the thermally broken aluminum profile.
[0042] In this embodiment, the connecting unit initially divides the first space into multiple heat-insulating spaces, namely the square space between the third and fourth heat-insulating strips. The connecting strip further divides the heat-insulating space diagonally into two triangular angular spaces, namely the angular space between the third heat-insulating strip and the connecting strip, and the angular space between the connecting strip and the fourth heat-insulating strip. This makes the heat transfer path in the first space more tortuous (from one side of a connecting unit, through the third heat-insulating strip into the upper angular space, then through the connecting strip into the lower angular space, and then through the fourth heat-insulating strip into the upper angular space in the next connecting unit, and so on), thus enhancing the heat insulation effect.
[0043] In an optional embodiment, such as Figure 1 and 3 As shown, the connecting row 300 includes multiple connecting units 310, which are arranged sequentially. In any two adjacent connecting units 310, the fourth heat insulation strip 312a in the connecting unit 310a located on the left side and the third heat insulation strip 311b in the connecting unit 310b located on the right side are the same component.
[0044] In this embodiment, multiple connecting units are arranged sequentially, with adjacent units sharing components. This simplifies the structure of the connecting strip, reduces material usage, and lowers production costs. Simultaneously, the integrated connection method enhances the overall integrity and stability of the connecting strip, avoiding loosening issues that may occur when connecting multiple independent units.
[0045] In one optional embodiment, the connecting strip is integrally molded. This ensures the tightness and strength of the connection between the various parts of the connecting unit, reduces assembly steps, and improves production efficiency. Integral molding also avoids thermal bridges and structural weak points caused by assembly gaps, further enhancing the overall performance of the thermal insulation strip.
[0046] In an optional embodiment, the first thermal insulation strip is either an I-type or a C-type thermal insulation strip. The choice between I-type and C-type thermal insulation strips can be made flexibly based on the actual application scenario and the connection requirements with the aluminum alloy profile. The I-type structure is simple and low-cost, suitable for scenarios where connection strength requirements are not high; the C-type structure provides a tighter fit with the profile, resulting in better connection stability, and is suitable for applications subject to greater stress.
[0047] In an optional embodiment, such as Figure 1 As shown, the second thermal insulation strip 200 is either an I-type or a C-type thermal insulation strip, and a supporting reinforcing frame 210 is provided at the lower part of the second thermal insulation strip 200. The supporting reinforcing frame enhances the structural strength and load-bearing capacity of the second thermal insulation strip, better supporting the overall structure, and effectively preventing deformation of the second thermal insulation strip, especially when the doors and windows are subjected to greater pressure. At the same time, since the lower end of the connecting strip abuts against the upper part of the second thermal insulation strip, it can receive the downward pressure distributed by the connecting strip, improving the overall deformation resistance of the thermal insulation strip.
[0048] In an optional embodiment, such as Figure 1 As shown, the supporting and reinforcing frame 210 is provided with a plurality of ribs 211, which divides the supporting and reinforcing frame 210 into a plurality of second spaces. The ribs enhance the deformation resistance of the supporting and reinforcing frame, while the second spaces utilize the heat insulation effect of the air layer to further improve the overall heat insulation performance of the heat insulation strip.
[0049] In an optional embodiment, such as Figure 1 and Figure 2 As shown, the lower part of the first heat insulation strip 100 and the upper part of the second heat insulation strip 200 are respectively provided with a plurality of protrusions 400. The upper and lower ends of the third heat insulation strip 311 and the fourth heat insulation strip 312 are provided with fork arms 320 corresponding to the protrusions 400. The protrusions on the first and second heat insulation strips cooperate with the fork arms of the third and fourth heat insulation strips to achieve precise positioning and connection between the first heat insulation strip, the connecting strip, and the second heat insulation strip, ensuring the stability and reliability of the connection.
[0050] In an optional embodiment, such as Figure 1 and Figure 2 As shown, the end of the fork arm 320 abuts against the wall surface of the first heat insulation strip 100 and / or the second heat insulation strip 200, and an opening 321 is provided at the abutment, the opening 321 engaging with the protrusion 400.
[0051] In this embodiment, the opening engages with the protruding strip, increasing the interlocking force between the connecting strip and the first and / or second thermal insulation strips. The end of the connecting fork arm abuts against the wall of the first and / or second thermal insulation strips. Compared to simple planar contact, the connection method in this embodiment can better transmit force. When the thermal insulation strip is subjected to external forces (such as vibration from opening and closing doors and windows, or wind pressure), it reduces the loosening and separation of the connection parts, strengthens the overall structure's resistance to deformation, and helps improve the airtightness and watertightness of the thermal insulation strip, indirectly improving the thermal insulation effect.
[0052] In an optional embodiment, such as Figure 1 and Figure 2 As shown, the lengths of the third heat insulation strip 311 and the fourth heat insulation strip 312 are equal to or greater than the height of the first space. In this embodiment, if the lengths of the third heat insulation strip and the fourth heat insulation strip are equal to the height of the first space, the third heat insulation strip and the fourth heat insulation strip are vertical, and combined with the oblique arrangement of the connecting strip, the connecting unit has an "N" shaped structure; if the lengths of the third heat insulation strip and the fourth heat insulation strip are greater than the height of the first space, the third heat insulation strip and the fourth heat insulation strip are oblique, preferably in the opposite direction to the oblique direction of the connecting strip, so that multiple connecting units have a continuous "W" shaped structure.
[0053] The length design of the third and fourth heat insulation strips in this embodiment ensures that they can fully support the first and second heat insulation strips, ensuring the stability of the first space and avoiding structural loosening or deformation due to insufficient length.
[0054] On the other hand, this utility model also provides a thermally broken aluminum profile, including a split-type combined thermal insulation strip as described in one or more optional embodiments above. The thermally broken aluminum profile using this split-type combined thermal insulation strip possesses all the advantages of the thermal insulation strips in one or more of the above optional embodiments, effectively blocking heat conduction between indoors and outdoors, improving the thermal insulation performance of the thermally broken aluminum profile, while also enhancing its structural stability and service life, and expanding its application range.
[0055] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.
Claims
1. A split-type combined thermal insulation strip, characterized in that, include: First thermal insulation strip (100); The second heat insulation strip (200) is disposed below the first heat insulation strip (100) to define a first space between the first heat insulation strip (100) and the second heat insulation strip (200); A connecting row (300) located in the first space, the connecting row (300) including at least one connecting unit (310), the connecting unit (310) including: The third heat insulation strip (311) is connected at its upper and lower ends to the lower part of the first heat insulation strip (100) and the upper part of the second heat insulation strip (200), respectively. The fourth heat insulation strip (312) is connected at its upper and lower ends to the lower part of the first heat insulation strip (100) and the upper part of the second heat insulation strip (200), respectively. The connecting strip (313) is angled as a whole, such that the lower end of the connecting strip (313) is connected to the lower part of the third heat insulation strip (311), and the upper end of the connecting strip (313) is connected to the upper part of the fourth heat insulation strip (312).
2. The split-type combined thermal insulation strip according to claim 1, characterized in that: The connecting row (300) includes multiple connecting units (310), which are arranged in sequence. In any two adjacent connecting units (310), the fourth heat insulation strip (312) in the connecting unit (310) located on the left side and the third heat insulation strip (311) in the connecting unit (310) located on the right side are the same component.
3. A split-type combined thermal insulation strip according to claim 1, characterized in that: The connecting bar (300) is integrally formed.
4. A split-type combined thermal insulation strip according to claim 1, characterized in that: The first thermal insulation strip (100) is a type I thermal insulation strip or a type C thermal insulation strip.
5. A split-type combined thermal insulation strip according to claim 1, characterized in that: The second thermal insulation strip (200) is a type I thermal insulation strip or a type C thermal insulation strip, and a supporting reinforcing frame (210) is provided at the bottom of the second thermal insulation strip (200).
6. A split-type combined thermal insulation strip according to claim 5, characterized in that: The supporting and reinforcing frame (210) is provided with a number of ribs (211), which divides the supporting and reinforcing frame (210) into a number of second spaces.
7. A split-type combined thermal insulation strip according to claim 1, characterized in that: The lower part of the first heat insulation strip (100) and the upper part of the second heat insulation strip (200) are respectively provided with a plurality of protrusions (400), and the upper and lower ends of the third heat insulation strip (311) and the fourth heat insulation strip (312) are provided with fork arms (320) corresponding to the protrusions (400).
8. A split-type combined thermal insulation strip according to claim 7, characterized in that: The end of the fork arm (320) abuts against the wall surface of the first heat insulation strip (100) and / or the second heat insulation strip (200), and an opening (321) is provided at the abutment, the opening (321) engaging with the protrusion (400).
9. A split-type combined thermal insulation strip according to claim 7, characterized in that: The lengths of the third insulation strip (311) and the fourth insulation strip (312) are equal to or greater than the height of the first space.
10. A thermally broken aluminum profile, characterized in that, Includes a split-type combined thermal insulation strip as described in any one of claims 1-9.