Heat insulation window sash
By combining outer and inner profiles made of different materials (aluminum alloy and PVC), and by setting a sealed chamber at the bottom of the inner profile to cooperate with the sealing strip, the problem of poor heat insulation and sound insulation performance of window sashes is solved, achieving better energy-saving effect and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2026-03-13
AI Technical Summary
Existing window sashes have poor heat and sound insulation performance and are expensive. The existing window sash structure made of aluminum alloy and PVC composite materials has shortcomings in heat conduction and sealing performance.
It combines outer and inner profiles made of different materials (aluminum alloy and plastic steel). The inner profile has a multi-chamber structure and a sealing chamber is set at the bottom of the inner profile to cooperate with the sealing strip. The outer profile has a sealing groove and a chamber, and a sloped sealing structure is designed to enhance the sealing effect.
It improves the heat insulation, sound insulation and airtightness of window sashes, reduces production and maintenance costs, achieves complementary advantages of materials, and enhances structural stability and sealing effect.
Smart Images

Figure CN223991691U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of door and window building materials technology, and in particular to a heat-insulating window sash. Background Technology
[0002] Most windows currently on the market are constructed using aluminum alloy or PVC profiles. PVC windows offer good thermal insulation, but due to the nature of the material, their UV resistance and weather resistance are inferior to aluminum alloy. PVC has good sealing and thermal insulation properties, but poor thermal conductivity. Aluminum alloy windows have higher strength and stronger wind pressure resistance, but their thermal conductivity is worse than PVC, resulting in inferior thermal insulation. Furthermore, aluminum alloy profiles are more refined and aesthetically pleasing than PVC profiles, making them a popular choice.
[0003] Currently, window sash structures generally involve placing a thermal break strip between two aluminum alloy profiles. For example, the prior art, Chinese invention patent document with publication number CN109989671A and publication date July 9, 2019, discloses the following technical solution: an aluminum-plastic composite profile, comprising an aluminum alloy outer frame, an aluminum alloy inner frame, and a plastic profile; the plastic profile has a multi-cavity structure; the aluminum alloy outer frame, the aluminum alloy inner frame, and the plastic profile are connected by a thermally broken aluminum corner structure.
[0004] The above technical solution, when used in window sashes, will have the following problems: Although the heat transfer between the aluminum alloy outer frame and the aluminum alloy inner frame can be interrupted to some extent by plastic profiles, the overall thermal insulation and sound insulation performance of the structure is still poor, and the cost is high. Summary of the Invention
[0005] To address the aforementioned technical problems, this utility model proposes a heat-insulating window sash that effectively solves the issues of poor heat and sound insulation performance and high cost, while being more energy-efficient and reducing consumption.
[0006] This utility model is achieved by adopting the following technical solution:
[0007] A heat-insulating window sash includes an outer profile and an inner profile connected by a locking block and a locking groove, the outer profile and the inner profile being made of different materials; the inner profile has a multi-chamber structure, and the lower part is also provided with a protruding sealing chamber for cooperating with a sealing strip.
[0008] The materials include aluminum alloy and PVC.
[0009] The outer profile is made of aluminum alloy, and the inner profile is made of plastic steel.
[0010] The outer edge of the sealed chamber includes a slope; the slope is inclined downwards from the inside to the outside.
[0011] The outer profile is also provided with a sealing groove for installing a glass sealing strip.
[0012] The outer profile also forms a first chamber, which shares the same side with the sealing groove.
[0013] The first chamber is also provided with a protrusion.
[0014] The first chamber is a triangular chamber.
[0015] The inner profile is also provided with a mounting groove. The wall surface of the mounting groove on the side near the window is stepped, and the stepped surface is inclined.
[0016] The inner profile also encloses a second chamber, which shares the same side with the mounting groove.
[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0018] 1. In this utility model, the window sash only includes outer and inner profiles made of different materials, resulting in a simple structure. Furthermore, due to the difference in thermal conductivity between the outer and inner profiles, the heat transfer path is reduced, effectively improving the heat insulation effect. Moreover, the inner profile has a multi-chamber structure, which can form multiple insulation layers, further effectively preventing heat transfer and giving the window sash better thermal insulation and sound insulation effects, achieving good energy-saving results and reducing energy consumption.
[0019] The materials of the outer and inner profiles can be selected according to actual needs to meet different strength and durability requirements, thereby further extending the service life of the window sash.
[0020] In addition, this structure eliminates the need for existing plastic profiles or thermal break strips between two aluminum alloy profiles, making installation simpler and faster, reducing maintenance costs, and significantly lowering production costs.
[0021] Finally, by providing a protruding sealing chamber at the bottom of the inner profile to mate with the sealing strip, a good seal between the window sash and the window frame can be ensured. The sealing strip can fit tightly between the outer wall of the sealing chamber and the window frame, effectively preventing the exchange of indoor and outdoor air and moisture, thus improving the airtightness and watertightness of the window sash.
[0022] 2. The outer profile is made of aluminum alloy, and the inner profile is made of PVC. This allows the window sash to have the strength, wind pressure resistance, and UV resistance of aluminum alloy doors and windows on the outside, while having the sealing and heat insulation performance of PVC on the inside, thus achieving the complementary advantages of the two materials.
[0023] 3. The structural design of the outer edge of the sealed chamber ensures a tight seal when the window is closed.
[0024] 4. The design of the sealing groove allows the glass sealing strip to fit tightly between the window frame, such as between the glass and the outer profile, which can improve air tightness, water tightness and sound insulation.
[0025] 5. The design of the first and second chambers enhances the stability of the structure and further improves the sealing effect, effectively reducing heat transfer and loss, and improving sound and heat insulation performance.
[0026] 6. The protrusions enhance the structural stability of the first chamber.
[0027] 7. The wall surface of the mounting groove on the side near the window is stepped, and the stepped surface is sloping, which can provide a multi-layered sealing effect. Attached Figure Description
[0028] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments, wherein:
[0029] Figure 1 This is a schematic diagram of the structure of this utility model;
[0030] Figure 2 This is an enlarged structural diagram of region A in this utility model;
[0031] Figure 3 This is a schematic diagram of the heat-insulating window sash of this utility model applied to a casement window;
[0032] Marked in the image:
[0033] 1. Outer profile, 2. Inner profile, 3. Sealing chamber, 4. Sealing groove, 5. First chamber, 6. Protrusion, 7. Mounting groove, 8. Second chamber, 9. Sealing strip. Detailed Implementation
[0034] Example 1
[0035] In a preferred embodiment of this utility model, the present utility model includes a heat-insulating window sash, comprising an outer profile 1 and an inner profile 2. Specifically, the upper and lower ends of the inner side of the outer profile 1 are respectively enclosed to form a groove, and the outer end of the inner profile 2 is provided with two locking blocks that respectively match the grooves. The outer profile 1 and the inner profile 2 are connected by the cooperation of the locking blocks and the grooves. The outer profile 1 and the inner profile 2 are made of different materials. Specifically, the outer profile 1 can be made of PVC, and the inner profile 2 can be made of aluminum alloy. The inner profile 2 has a multi-chamber structure, and the lower part is also provided with a protruding sealing chamber 3 for cooperating with a sealing strip 9.
[0036] Example 2
[0037] In a preferred embodiment of this utility model, a heat-insulating window sash is provided, comprising an outer profile 1 and an inner profile 2. The outer end of the inner profile 2, near the outer profile 1, is provided with two sets of positioning members. Each set of positioning members includes two protrusions, and the two protrusions in the same set form a groove. The outer profile 1, near the inner profile 2, is provided with two locking blocks that respectively match the two grooves. The outer profile 1 and the inner profile 2 are connected through the cooperation of the locking blocks and the grooves.
[0038] The outer profile 1 and the inner profile 2 are made of different materials. Specifically, the outer profile 1 can be made of aluminum alloy, and the inner profile 2 can be made of plastic steel. The inner profile 2 has a multi-chamber structure; specifically, it can include three chambers located on the same axis. The lower part of the inner profile 2 also has protruding sealing chambers 3 for cooperating with the sealing strip 9. The protrusion specifically refers to the three chambers protruding from the inner profile 2.
[0039] Example 3
[0040] In another preferred embodiment of this utility model, a heat-insulating window sash is provided, comprising an outer profile 1 and an inner profile 2. The inner end of the outer profile 1, near the inner profile 2, is provided with two sets of positioning members. Each set of positioning members includes two protrusions, and the two protrusions in the same set form a groove. The inner profile 2, near the outer profile 1, is provided with two locking blocks that respectively match the two grooves. The outer profile 1 and the inner profile 2 are connected through the cooperation of the locking blocks and the grooves. The outer profile 1 can be made of PVC, and the inner profile 2 can be made of aluminum alloy. The inner profile 2 has a multi-chamber structure, and the lower part is also provided with an outwardly protruding sealing chamber 3 for cooperating with a sealing strip 9.
[0041] Example 4
[0042] In a preferred embodiment of this utility model, the present utility model includes a heat-insulating window sash, comprising an outer profile 1 and an inner profile 2 connected by the cooperation of a locking block and a locking groove. The outer profile 1 may be made of aluminum alloy, and the inner profile 2 may be made of PVC. The inner profile 2 has a multi-chamber structure, and its lower part is further provided with a protruding sealing chamber 3 for cooperating with a sealing strip 9.
[0043] To facilitate better installation of the window frame, the inner profile 2 is provided with an installation groove 7, and the outer profile 1 is provided with a sealing groove 4 for installing the glass sealing strip. Furthermore, to improve the overall structural stability, the top of the outer profile 1 is enclosed to form a rectangular first chamber 5, which shares the same side with the sealing groove 4. The top of the inner profile 2 is also enclosed to form a triangular second chamber 8, which shares the same side with the installation groove 7.
[0044] Example 5
[0045] As the preferred embodiment of this utility model, please refer to the appendix to the specification. Figure 1 This utility model includes a heat-insulating window sash, comprising an outer profile 1 and an inner profile 2. The inner end of the outer profile 1, near the inner profile 2, has two locking blocks. The inner profile 2 has locking grooves that match the locking blocks. The outer profile 1 and the inner profile 2 are connected through the cooperation of the locking blocks and the locking grooves. The outer profile 1 and the inner profile 2 are made of different materials. Specifically, the outer profile 1 can be made of aluminum alloy, and the inner profile 2 can be made of PVC.
[0046] The outer profile 1 encloses a cavity. The top of the outer profile 1 also has a sealing groove 4 for installing a glass sealing strip, and the top further encloses a first cavity 5, which shares the same side with the sealing groove 4. Furthermore, the first cavity 5 is a triangular cavity, making the structure more stable. Even further, the first cavity 5 also has a protrusion 6.
[0047] The inner profile 2 has a multi-chamber structure. The top of the inner profile 2 is provided with a mounting groove 7. For improved sealing and stability, please refer to the attached instruction manual. Figure 2 The wall surface of the mounting groove 7 on the side near the window is stepped, and the stepped surface is inclined. Furthermore, a second chamber 8 is formed within the inner profile 2, sharing the same side edge as the mounting groove 7. The lower part of the inner profile 2 also has a protruding sealing chamber 3 for engaging with the sealing strip 9. The outer edge of the sealing chamber 3 includes an inclined surface; from the interior to the exterior direction, the inclined surface slopes downwards.
[0048] Through the structural design of this utility model, the heat insulation and sound insulation effects can be improved by considering the differences in thermal conductivity of materials and the heat resistance characteristics of the cavity, and the production and maintenance costs can be greatly reduced.
[0049] Example 6
[0050] As another preferred embodiment of this utility model, please refer to the appendix to the specification. Figure 3The heat-insulating window sash in Example 5 can be used in a casement window. Through its cooperation with the rest of the casement window structure, a good heat insulation and sound insulation effect can be achieved.
[0051] In summary, any other corresponding modifications made by those skilled in the art based on the technical solution and concept of this utility model without creative mental effort after reading this utility model document are all within the scope of protection of this utility model.
Claims
1. A thermally insulated sash, characterized in that: The outer profile (1) and the inner profile (2) are connected by the cooperation of the card block and the card slot, the material of the outer profile (1) and the inner profile (2) is different; the inner profile (2) is a multi-chamber structure, and the lower part is further provided with an outer convex sealing chamber (3) for cooperating with a sealing strip (9).
2. A thermally insulated sash according to claim 1, characterized in that: The material includes aluminum alloy and plastic steel.
3. A thermally insulated window sash according to claim 2, characterized in that: The material of the outer profile (1) is aluminum alloy, and the material of the inner profile (2) is plastic steel.
4. A thermally insulated window sash according to claim 3, characterized in that: The outer edge of the sealing chamber (3) includes a slope; from the indoor to the outdoor direction, the slope is downwardly inclined.
5. A thermally insulated window sash according to claim 1 or 3, characterized in that: The outer profile (1) is further provided with a sealing groove (4) for installing a glass sealing strip.
6. A thermally insulated window sash according to claim 5, characterized in that: The outer profile (1) is further surrounded to form a first chamber (5), and the first chamber (5) and the sealing groove (4) share the same side.
7. A thermally insulated window sash according to claim 6, characterized in that: The first chamber (5) is further provided with a protruding part (6).
8. A thermally insulated window sash according to claim 7, characterized in that: The first chamber (5) is a triangular chamber.
9. A thermally insulated window sash according to claim 1 or 3, characterized in that: The inner profile (2) is further provided with an installation groove (7), the wall surface of the installation groove (7) on the window body side is in a stepped shape, and the stepped surface is a slope.
10. A thermally insulated sash according to claim 9, characterized in that: The inner profile (2) is further surrounded to form a second chamber (8), and the second chamber (8) and the installation groove (7) share the same side.
Citation Information
Patent Citations
Aluminum-plastic composite profile
CN109989671A