Door and window heat insulation piece with low heat conduction effect
By combining a wave-shaped multi-layer composite structure with a vacuum layer, the problems of single material and loose connection of door and window insulation components are solved, achieving efficient heat insulation and airtightness, and adapting to the deformation of doors and windows during long-term use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN RUIFENG RUBBER PLASTIC PROD CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-05-12
AI Technical Summary
Existing door and window insulation components are made of a single material, have insufficient insulation performance, are easily deformed by temperature and humidity, and have loose connections that form thermal bridges, resulting in a decrease in insulation effect.
The insulation component employs a wave-shaped multi-layer composite structure, combining a vacuum layer and low thermal conductivity materials to enhance the heat conduction path and block heat transfer. At the same time, an elastic sealing layer is used to fill the gaps and enhance airtightness.
Significantly improves thermal insulation performance, meets high energy-saving standards, reduces thermal bridging effect, maintains long-term sealing effect, and adapts to the deformation of doors and windows when opened and closed.
Smart Images

Figure CN224228510U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of door and window accessories technology, specifically a door and window insulation component with low heat conduction efficiency. Background Technology
[0002] In the construction industry, doors and windows are important channels for heat exchange between indoors and outdoors. In order to reduce heat loss through doors and windows, thermal insulation components are usually installed on them.
[0003] Traditional thermal insulation components often use a single material, such as plastic or rubber, which has limited thermal insulation performance. Furthermore, during long-term use, they are easily affected by external environmental factors, such as temperature and humidity changes, causing structural deformation and thus affecting the insulation effect. The existing connection methods between thermal insulation components and door / window frames and sashes are not tight enough, easily forming thermal bridges and further reducing insulation performance.
[0004] Therefore, this application provides a door and window insulation component with low thermal conductivity to solve the above problems. Utility Model Content
[0005] This application provides a door and window insulation component with low thermal conductivity, aiming to solve the problems mentioned in the background art, such as insufficient thermal insulation performance of existing single-material insulation components, easy deformation and failure due to temperature and humidity effects after long-term use, and significant thermal bridging effect leading to a decrease in thermal insulation effect.
[0006] To achieve the above objectives, this application provides the following technical solution: a door and window insulation component with low thermal conductivity, comprising an insulation body disposed between the overlapping contact surfaces of the door / window frame and the door / window sash, wherein one end of the insulation body is symmetrically provided with a connecting portion for installing the insulation body between the door / window frame and the door / window sash; the insulation body has a wave-shaped structure, comprising a first insulation layer, a second insulation layer, and a third insulation layer connected in sequence, wherein a vacuum layer is disposed within the second insulation layer. The wave-shaped insulation body, through its undulating and bending geometric shape, transforms the straight heat conduction path into a complex curved path, increasing the distance and resistance of heat transfer; the first and third insulation layers act as outer barriers, utilizing the low thermal conductivity of the insulation plastic to initially block heat, while the middle second insulation layer forms a heat conduction blocking area through the vacuum layer; the three-layer structure works synergistically to form a multi-layer insulation system of "path extension + material barrier + vacuum insulation".
[0007] Preferably, both the first and third insulation layers are thermally insulating plastic layers. Utilizing the low thermal conductivity of the thermally insulating plastic itself, an outer thermal resistance barrier is constructed for the insulation body, effectively preventing direct heat transfer between indoors and outdoors through the outer layer. Combined with the vacuum structure of the intermediate layer, this creates a multi-layered thermal resistance superposition effect.
[0008] Preferably, the connecting part includes an L-shaped connecting plate movably mounted on the thermal insulation body. The L-shaped connecting plate has connecting holes for fixing the L-shaped connecting plate to the desired position using bolts. This achieves rapid installation and reliable fixing between the thermal insulation body and the door / window frame and sash, avoiding the complex processes of traditional gluing or welding methods, improving construction efficiency, and facilitating later maintenance and replacement.
[0009] Preferably, to reduce the gap between the door / window frame and the door / window sash, the thermal insulation body has mounting grooves on both sides, and an elastic sealing layer is installed in the mounting grooves. Through the tight contact between the elastic sealing layer and the door / window frame and sash, the assembly gap between components is filled, the airflow channel is blocked, the thermal bridging effect caused by air convection is effectively avoided, and the airtightness of the doors and windows is enhanced.
[0010] Preferably, the elastic sealing layer includes a rubber base layer and multiple elastic protrusions disposed on the rubber base layer. The high elasticity and good sealing performance of the rubber base layer, combined with the optimized surface contact design of the elastic protrusions, achieves dynamic adhesion between the sealing layer and the surface of the door / window frame / sash, maintaining excellent sealing performance even under slight deformation caused by long-term opening and closing of the door and window.
[0011] Preferably, to further improve the sealing effect, the elastic protrusion is hemispherical. The hemispherical geometry maximizes the frictional resistance and adaptability with the contact surface while ensuring elastic deformation capability, effectively coping with minor deformations or installation errors of door / window frames / sashes caused by temperature changes, and achieving continuous sealing in dynamic environments.
[0012] This application significantly improves the overall thermal insulation performance of doors and windows by combining a wave-shaped design with a multi-layered composite structure. It not only extends the heat conduction path to reduce conduction efficiency, but also achieves a near-zero heat conduction barrier effect through a vacuum layer, which can effectively meet the building thermal insulation requirements under high energy-saving standards.
[0013] This application fills the assembly gaps between components by tightly contacting the elastic sealing layer with the door and window frame and door and window sash, blocking the air circulation channel, effectively avoiding the thermal bridge effect caused by air convection, and enhancing the airtightness of the doors and windows. Attached Figure Description
[0014] Figure 1 This is a structural schematic diagram of a door and window insulation component with low thermal conductivity.
[0015] Figure 2 This is an exploded view of the thermal insulation component.
[0016] In the picture:
[0017] 1. Insulation body; 11. First insulation layer; 12. Second insulation layer; 121. Vacuum layer; 13. Third insulation layer; 14. Mounting groove; 2. Connecting part; 21. L-shaped connecting plate; 22. Connecting hole; 3. Elastic sealing layer; 31. Rubber base layer; 32. Protrusion. Detailed Implementation
[0018] The technical solutions of the embodiments of this application 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 this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0019] Example 1
[0020] This embodiment provides a door and window insulation component with low thermal conductivity, such as... Figure 1-2 As shown, the window and door insulation component includes an insulation body 1 disposed between the overlapping contact surfaces of the window / door frame and the window / door sash. One end of the insulation body 1 has symmetrically arranged connecting portions 2 for installing the insulation body 1 between the window / door frame and the window / door sash. The insulation body 1 has a wave-shaped structure and includes a first insulation layer 11, a second insulation layer 12, and a third insulation layer 13 connected in sequence. A vacuum layer 121 is disposed within the second insulation layer 12. Through the combination of the wave-shaped design and the multi-layered composite structure, the overall insulation performance of the window and door is significantly improved. This not only extends the heat conduction path to reduce conduction efficiency but also achieves a near-zero heat conduction barrier effect through the vacuum layer 121, effectively meeting the building insulation requirements under high energy-saving standards. The wavy insulation body 1 transforms the straight heat conduction path into a complex curved path through its undulating and bending geometric shape, increasing the distance and resistance of heat transfer. The first insulation layer 11 and the third insulation layer 13 serve as outer barriers, using the low thermal conductivity of the insulation plastic to initially block heat. The middle second insulation layer 12 forms a heat conduction blocking area through the vacuum layer 121. The three-layer structure works together to form a multi-layer insulation system of "path extension + material barrier + vacuum insulation".
[0021] Both the first insulation layer 11 and the third insulation layer 13 are thermally insulating plastic layers. Utilizing the low thermal conductivity of the thermally insulating plastic itself, an outer thermal resistance barrier is constructed for the insulation body 1, effectively preventing direct heat transfer between the interior and exterior through the outer layer of the insulation body 1. Combined with the vacuum structure of the intermediate layer, this creates a multi-layered thermal resistance superposition effect. The thermal conductivity of the thermally insulating plastic layers (first insulation layer 11 and third insulation layer 13) is significantly lower than that of traditional door and window materials such as metal. When heat attempts to pass through the insulation body 1, it first encounters the thermal resistance of the materials themselves in the two plastic layers, significantly slowing down the heat transfer rate. Simultaneously, as a structural support layer, it provides a stable attachment carrier for the intermediate second insulation layer 12, ensuring the structural integrity of the vacuum layer 121.
[0022] The connecting part 2 includes an L-shaped connecting plate 21 movably mounted on the thermal insulation body 1. The L-shaped connecting plate 21 has connecting holes 22 for fixing it to the desired position using bolts. This enables rapid installation and reliable fixing between the thermal insulation body 1 and the door / window frame / sash, avoiding the complex processes of traditional gluing or welding, improving construction efficiency, and facilitating later maintenance and replacement. The L-shaped connecting plate 21 is connected to the thermal insulation body 1 via a hinged connection. Its built-in connecting holes 22 can be aligned with the pre-set bolt holes on the door / window frame / sash. Bolts are inserted and tightened, stably clamping the thermal insulation body 1 between the overlapping contact surfaces of the door / window frame and the door / window sash, forming a detachable mechanical connection structure that ensures installation accuracy and facilitates position adjustment.
[0023] Example 2
[0024] Unlike Embodiment 1, to address the issue of insufficient tightness in the connection between existing thermal insulation components and door / window frames and sashes, which easily leads to thermal bridges and further reduces thermal insulation performance, the thermal insulation body 1 has mounting grooves 14 on both sides, with an elastic sealing layer 3 installed within each groove. The tight contact between the elastic sealing layer 3 and the door / window frames and sashes fills the assembly gaps between components, blocks airflow channels, effectively avoids the thermal bridge effect caused by air convection, and enhances the airtightness of the doors and windows. The mounting grooves 14 on both sides of the thermal insulation body 1 provide a mounting carrier for the elastic sealing layer 3. When the door / window frames and sashes are closed, the elastic sealing layer 3 is compressed, using its elastic deformation to fill the tiny gaps on the contact surface. When there is a temperature difference between indoors and outdoors, the sealing layer blocks the convective exchange of hot and cold air through the gaps, while also reducing direct heat conduction through the contact interface, forming a dual insulation effect of "physical sealing + convection blocking".
[0025] The elastic sealing layer 3 includes a rubber base layer 31 and multiple elastic protrusions 32 disposed on the rubber base layer 31. The high elasticity and excellent sealing performance of the rubber base layer 31, combined with the optimized surface contact design of the elastic protrusions 32, achieves dynamic adhesion between the sealing layer and the surface of the door / window frame / sash. Even under slight deformation caused by long-term opening and closing of the door / window, it can still maintain excellent sealing performance. As the main material, the rubber base layer 31 has a small change in elastic modulus with temperature, maintaining good flexibility within the range of -40℃ to 80℃, ensuring sealing stability during long-term use. The elastic protrusions 32 are distributed on the contact surface, increasing the number of contact points and contact pressure, transforming the planar seal into a multi-point elastic contact seal, further reducing air permeation paths and improving sealing reliability.
[0026] To further improve the sealing effect, the elastic protrusion 32 is hemispherical. This hemispherical geometry maximizes frictional resistance and adaptability with the contact surface while ensuring elastic deformation capacity. It effectively copes with minor deformations or installation errors in the door / window frame / sash caused by temperature changes, achieving continuous sealing under dynamic conditions. The curved surface structure of the hemispherical protrusion 32 has uniform elastic recovery force in all directions. When the door / window is closed, the protrusion 32 is compressed and deformed, creating multi-directional contact pressure between the curved surface and the contact surface. Compared to flat or angular protrusions 32, the hemispherical design has no stress concentration points, evenly distributing the mechanical stress during door / window opening and closing. Simultaneously, the transition structure at the curved edge better adapts to unevenness or slight displacement of the contact surface, ensuring a consistently tight seal and reducing air leakage gaps.
[0027] It should be noted that many of the standard parts used in this application are available on the market, while non-standard parts can be specially customized. The connection method used in this application is also a very common method in the mechanical field, and will not be described in detail here.
[0028] The above description is merely a preferred embodiment of this application, but the scope of protection of this application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this application, based on the technical solution and concept of this application, should be included within the scope of protection of this application.
Claims
1. A heat insulation component for doors and windows with low thermal conductivity, comprising a heat insulation body (1) disposed between the overlapping contact surfaces of the door / window frame and the door / window sash, wherein one end of the heat insulation body (1) is symmetrically provided with a connecting part (2) for installing the heat insulation body (1) between the door / window frame and the door / window sash; Its features are: The heat insulation body (1) has a wave-shaped structure. The heat insulation body (1) includes a first heat insulation layer (11), a second heat insulation layer (12) and a third heat insulation layer (13) connected in sequence. A vacuum layer (121) is provided inside the second heat insulation layer (12).
2. The door and window insulation component with low thermal conductivity according to claim 1, characterized in that: Both the first heat insulation layer (11) and the third heat insulation layer (13) are heat-insulating plastic layers.
3. The door and window insulation component with low thermal conductivity according to claim 1, characterized in that: The connecting part (2) includes an L-connecting plate (21) movably mounted on the heat insulation body (1), and the L-connecting plate (21) is provided with a connecting hole (22) for fixing the L-connecting plate (21) to the desired position by bolts.
4. The door and window insulation component with low thermal conductivity according to claim 1, characterized in that: The heat insulation body (1) is provided with mounting grooves (14) on both sides, and an elastic sealing layer (3) is provided in the mounting grooves (14).
5. The door and window insulation component with low thermal conductivity according to claim 4, characterized in that: The elastic sealing layer (3) includes a rubber base layer (31) and a plurality of elastic protrusions (32) disposed on the rubber base layer (31).
6. The door and window insulation component with low thermal conductivity according to claim 5, characterized in that: The elastic protrusion (32) is hemispherical.