Prefabricated cement-based external wall panel of integrated external window auxiliary frame

By integrating precast cement-based exterior wall panels with window frames, the problems of frame deformation and weak connections were solved, achieving improved waterproofing and thermal insulation performance and simplifying the construction process.

CN223824444UActive Publication Date: 2026-01-23EAST CHINA ARCHITECTURE DESIGN AND RESEARCH INSTITUTE CO LTD
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Patent Information

Application Number
CN202520318493.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-26
Publication Date
2026-01-23
Estimated Expiration
2035-02-26

AI Technical Summary

Technical Problem

Existing building exterior wall subframes are prone to deformation after installation, leading to a high risk of detachment. The connections are not firm, affecting waterproofing and thermal insulation performance. Furthermore, the sealant ages and cracks, failing to effectively prevent leakage.

Method used

Design a precast cement-based exterior wall panel with integrated window subframe. The subframe is integrally formed with the wall, and the connection is enhanced by functional structural components. Material matching is used to reduce thermal expansion differences, and sealant is used for reinforcement to form a highly efficient waterproof structure.

Benefits of technology

It improves the integrity and durability of the external wall cladding system, enhances waterproofing performance, simplifies the construction process, and meets the requirements of high-performance buildings.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of buildings, and provides a prefabricated cement-based external wall panel integrated with an external window auxiliary frame, which comprises a wall body and an auxiliary frame, a window opening is formed in the wall body, and the auxiliary frame is arranged in the window opening; the auxiliary frame comprises a framework and a functional structural member; at least the outer wall part of the frame is buried in the wall body; the functional structural member is connected with the frame, and at least one part of the functional structural member is embedded in the wall body and / or attached to the inner wall of the window opening. The auxiliary frame is integrated on the external wall panel, so that the completeness of an external wall enclosure system is improved, and the durability, waterproofness and thermal insulation performance of the external wall enclosure system are improved.
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Description

Technical Field

[0001] This utility model relates to the field of building engineering technology, and in particular to a precast cement-based exterior wall panel with integrated exterior window frame. Background Technology

[0002] Building exterior walls are an important component of buildings, and their main functions include bearing certain loads, protecting against wind and rain, providing thermal insulation, preventing noise, and ensuring fire safety. From an architectural perspective, exterior walls enclose buildings, forming a boundary between the interior and exterior.

[0003] In building exterior walls, the subframe serves as a transition system connecting the window system and the exterior wall. The way the subframe is connected to the exterior wall directly affects the safety, waterproofing, and thermal insulation performance of the exterior wall.

[0004] Existing subframes are typically installed after the building's exterior walls are constructed (post-installation method). This type of subframe needs to be prefabricated in the factory, and is prone to deformation during subsequent transportation, storage, and installation. This results in a significant risk of detachment after installation, increasing on-site repair work, reducing construction efficiency, and compromising the overall integrity of the subframe. Furthermore, in post-installation methods, the bond between the subframe and the exterior wall is poor. When there is a large temperature difference between indoors and outdoors, the different expansion and contraction characteristics of the two materials can easily lead to cracking at the joint, creating gaps. This significantly reduces airtightness, creates water seepage points, and reduces the durability of the wall.

[0005] Therefore, traditional window frame structures and installation methods are insufficient in terms of waterproofing. Rainwater can easily seep into the wall through the gaps between the frame and the window opening, leading to problems such as wall leakage and mold growth. This not only affects the building's aesthetics but also reduces its durability and thermal insulation performance. Currently, some solutions use sealant to fill the gaps, but sealant is prone to aging and cracking over long-term use, thus losing its waterproofing effect.

[0006] Based on the above technical problems, there is a need for a precast cement-based exterior wall panel with integrated window subframes. This integrated subframe helps to improve the integrity of the exterior wall cladding system, thereby enhancing its durability, waterproofing, and thermal insulation performance. Utility Model Content

[0007] The purpose of this utility model is to provide a precast cement-based exterior wall panel with an integrated exterior window frame. The integrated frame helps to improve the integrity of the exterior wall cladding system, thereby enhancing its durability, waterproofing, and thermal insulation performance.

[0008] This utility model provides a precast cement-based exterior wall panel with an integrated exterior window subframe, comprising: a wall and a subframe;

[0009] The wall has a window opening, and the subframe is set inside the window opening;

[0010] The subframe includes a frame and functional structural components integrally formed with the frame;

[0011] At least its outer wall portion is embedded within the wall.

[0012] The functional structural component is connected to the frame, and a portion of the functional structural component is embedded in the wall and / or a portion of the functional structural component is attached to the wall.

[0013] Optionally, the wall includes a concrete layer and an insulation layer, the insulation layer being located within the concrete layer; the subframe is in contact with the insulation layer.

[0014] Optionally, the precast cement-based exterior wall panel with integrated exterior window sub-frame further includes a window frame, which is located inside the sub-frame, and the outer wall of the window frame is sealed to the inner wall of the sub-frame.

[0015] Optionally, the functional structural component includes a lower stop edge, which fits against the lower edge of the window opening and is located on the side of the subframe near the outside of the wall.

[0016] Optionally, a waterproof slope is provided on the lower edge, the waterproof slope extending downwards towards the side closer to the outside of the wall; and / or, a lower side edge is connected to the side of the lower edge closer to the outside of the wall, the lower side edge fitting against the outer side of the wall.

[0017] Optionally, the functional structural component further includes an upper retaining edge, which is fitted to the upper edge of the window opening and is located on the side of the subframe near the outside of the wall.

[0018] Optionally, a drip groove is provided on the upper edge, and / or an upper side edge is connected to the side of the upper edge near the outside of the wall, the upper side edge being attached to the outside of the wall.

[0019] Optionally, the frame includes multiple frames and insulation material, with each frame being detachably connected end to end in sequence. Each frame has an inner cavity, and the insulation material fills the inner cavity of the frame.

[0020] Optionally, the functional structural component further includes a blocking component, which is embedded in the wall and is arranged at an angle to the horizontal direction;

[0021] When the wall includes an insulation layer, the blocking member is located on the side of the insulation layer closer to the outside of the wall.

[0022] When the functional structural component includes a lower stop, the blocking component is connected below the lower stop;

[0023] When the functional structural component includes an upper stop, the blocking component is connected above the upper stop.

[0024] Optionally, the functional structural component further includes a reinforcing member, which is embedded in the wall and is arranged at an angle to the vertical direction;

[0025] And / or, the functional structural component further includes a protrusion disposed on the lower edge of the inner wall of the subframe; when the precast cement-based exterior wall panel of the integrated exterior window subframe includes a window frame, the protrusion is conformally embedded into the outer wall of the window frame.

[0026] With this configuration, the connection method in the precast cement-based exterior wall panel with integrated window subframe is suitable for mass production in the factory, has low requirements for on-site installation, good waterproof performance, and the connection nodes can meet the design specifications and related high-performance requirements for ultra-low energy consumption or near-zero energy consumption.

[0027] The aforementioned precast cement-based exterior wall panels with integrated window frames have a higher degree of integration between the wall and the frame, which can better connect the precast cement-based exterior wall cladding system with the window system. This not only ensures the stability of the wall's thermal insulation performance, but also enhances waterproofing through the addition of functional structural components, improving the waterproofing performance at the connection between the wall and the window system, increasing the durability of building materials, and simplifying the construction process and improving on-site work efficiency. Attached Figure Description

[0028] Figure 1 This is a structural schematic diagram of a precast cement-based exterior wall panel with an integrated exterior window frame according to an embodiment of the present invention.

[0029] Figure 2 This is a cross-sectional structural schematic diagram of a precast cement-based exterior wall panel with an integrated exterior window frame according to an embodiment of the present utility model.

[0030] Figure 3 This is a partial structural diagram of a precast cement-based exterior wall panel with integrated exterior window subframe according to an embodiment of the present invention. Figure 1 ;

[0031] Figure 4 This is a partial structural diagram of a precast cement-based exterior wall panel with integrated exterior window subframe according to an embodiment of the present invention. Figure 2 ;

[0032] Figure 5 This is a partial cross-sectional structural schematic diagram of a precast cement-based exterior wall panel with an integrated exterior window frame according to an embodiment of the present utility model.

[0033] Figure 6This is a structural schematic diagram of a precast cement-based exterior wall panel with an integrated exterior window frame, according to another embodiment of the present invention.

[0034] In the attached diagram:

[0035] 10-Wall; 101-Concrete layer; 102-Insulation layer;

[0036] 11-Window opening;

[0037] 20-Subframe; 21-Frame; 211-Frame body; 212-Insulation material; 22-Functional structural component; 221-Lower edge; 222-Waterproof slope; 223-Lower side edge; 224-Upper edge; 225-Drip groove; 226-Upper side edge; 227-Blocking component; 228-Reinforcing component; 229-Protrusion;

[0038] 30 - Window frame;

[0039] 40 - Mold; 41 - Outer frame; 42 - Inner frame;

[0040] 50-corner code. Detailed Implementation

[0041] The precast cement-based exterior wall panel with integrated exterior window frame proposed in this utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of this utility model will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0042] As used in this invention, the singular forms “a,” “an,” and “the” include plural objects; the term “or” is generally used to mean “and / or”; the term “a number” is generally used to mean “at least one”; and the terms “at least two” or “more than” are generally used to mean “two or more”. Furthermore, the terms “first,” “second,” and “third” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with “first,” “second,” or “third” may explicitly or implicitly include one or at least two of that feature. Furthermore, the terms "installed," "connected," and "attached," as used in this utility model, and the term "set" on one element from another, should be interpreted broadly. They generally only indicate a connection, coupling, cooperation, or transmission relationship between the two elements, which can be direct or indirect through an intermediate element. They should not be construed as indicating or implying a spatial positional relationship between the two elements, meaning one element can be located inside, outside, above, below, or to one side of the other element, unless otherwise explicitly stated. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances. Additionally, directional terms such as above, below, up, down, upward, downward, left, and right are used relative to exemplary embodiments as shown in the figures, with upward or up direction pointing towards the top of the corresponding figure, and downward or down direction pointing towards the bottom of the corresponding figure.

[0043] This embodiment provides a precast cement-based exterior wall panel with integrated exterior window subframe, including: wall 10, subframe 20 and window frame 30;

[0044] A window opening 11 is provided on the wall 10, and the subframe 20 is disposed within the window opening 11.

[0045] The subframe 20 includes a frame 21 and a functional structural component 22; at least the outer wall portion of the frame 21 is embedded in the wall 10.

[0046] Please refer to Figure 1 and Figure 2 As shown, a mold 40 is required during the manufacturing process. The mold 40 includes an outer frame 41 and an inner frame 42, with the inner frame 42 located inside the outer frame 41. The outer frame 41 and the inner frame 42 form a casting space that defines the shape of the wall 10. The outer frame 41 defines the shape of the wall 10, and the inner frame 42 is designed to create a window opening 11 in the center of the wall 10 after casting.

[0047] Before pouring, the subframe 20 is fixed to the outer wall of the inner frame 42. Then, material is poured into the pouring space between the outer frame 41 and the inner frame 42 to form the wall 10. Simultaneously, the subframe 20 is naturally embedded within the wall 10, achieving a connection and fixation between the subframe 20 and the wall 10. To prevent gaps between the two, sealant can be applied between the wall 10 and the subframe 20 for reinforcement and sealing.

[0048] In this embodiment, the subframe 20 is made of fiberglass polyurethane material, so that the expansion and contraction characteristics of the subframe 20 material are similar to those of the cement-based material of the wall 10, thereby improving the phenomenon of gaps between the subframe 20 and the wall 10 caused by differences in thermal expansion. Furthermore, the subframe 20 can be made of various finishes, including black, silver, and wood, to meet the requirements of facade design. In other alternative embodiments, the subframe 20 can also be made of polyurethane material, and the material of the subframe 20 can be selected based on actual usage requirements.

[0049] In this embodiment, both the outer frame 41 and the inner frame 42 are rectangular structures. Reinforcing ribs are provided on the outer wall of the outer frame 41 and the inner wall of the inner frame 42 to ensure the overall structural strength of the mold 40. Therefore, the wall 10 formed by casting through the mold 40 has a square structure. In other alternative embodiments, the shapes of the outer frame 41 and the inner frame 42 can be flexibly set based on the actual shape requirements of the wall 10.

[0050] Please refer to Figure 3 As shown, the functional structural component 22 is connected to the frame 21. A portion of the functional structural component 22 is embedded in the wall 10, a portion is attached to the inner wall of the window opening 11, and a portion is attached to the outer side of the wall 10.

[0051] In this embodiment, the frame 21 has a rectangular cross-section and is entirely embedded within the wall 10. The inner wall of the frame 21 is flush with the inner wall of the window opening 11 to ensure the overall consistency of the window opening 11. In other alternative embodiments, the frame 21 may also be partially embedded within the wall 10, meaning that the portion of the frame 21 near its inner wall protrudes from the window opening 11. The embedding method of the frame 21 can be adjusted based on actual usage requirements.

[0052] Please continue to refer to this. Figure 2 , Figure 3 and Figure 5As shown, the window frame 30 is located within the sub-frame 20. The outer wall shape of the window frame 30 matches the inner wall shape of the sub-frame 20, and the outer wall of the window frame 30 is sealed to the inner wall of the sub-frame 20. The connection gap between the window frame 30 and the sub-frame 20 can be sealed with sealant. In other alternative embodiments, the window frame 30 can also be installed on-site, and the sub-frame 20 and the window frame 30 can be sealed together with the sealant.

[0053] Combination Figure 5 As shown, in this embodiment, the frame 21 includes four frame bodies 211 and insulation material 212. The four frame bodies 211 are detachably connected end-to-end to form a square frame structure. The frame bodies 211 are box-type steel beams with an inner cavity. The insulation material 212 fills the inner cavity of the frame body 211 to form a highly insulated subframe. Since the frame bodies 211 are hollow, adjacent frame bodies 211 can be connected by corner brackets 50 and connecting screws. Adjacent frame bodies 211 are distributed at right angles, so the corner brackets 50 are also right-angled structures. One side of the corner bracket 50 extends into one frame body 211, and the other side extends into another frame body 211. Then, screws connect the side of the corner bracket 50 to the corresponding frame body 211, forming a stable corner connection.

[0054] In this embodiment, the insulation material 212 can be polyurethane insulation cotton to improve the insulation performance of the frame 21. In other alternative embodiments, the insulation material 212 can be selected from existing insulation materials based on actual usage requirements, such as polyurethane foam.

[0055] In this embodiment, the frame 21 includes four frame bodies 211, each of which is a straight beam structure, and the four frame bodies 211 form a rectangular frame structure. In other alternative embodiments, the number and shape of the frame bodies 211 included in the frame 21 can be adjusted based on the shape adaptability of the frame 21.

[0056] Please refer to Figure 2 and Figure 3 As shown, the wall 10 includes a concrete layer 101 and an insulation layer 102, with the insulation layer 102 located within the concrete layer 101.

[0057] In this embodiment, the frame 21 is vertically aligned with the insulation layer 102, and the outer wall of the frame 21 is in contact with the insulation layer 102. The relative positional relationship between the insulation layer 102 and the frame 21 is designed to ensure high thermal stability and continuous insulation after they are combined.

[0058] In this embodiment, the functional structural component 22 can serve as a water-blocking function, a reinforcement function, etc. The following is in conjunction with... Figures 2 to 4 Introducing functional structural component 22.

[0059] Combination Figure 3 As shown, the functional structural component 22 includes a lower stop 221, which is attached to the lower edge of the window opening 11. The lower stop 221 is located on the side of the subframe 20 near the outside of the wall 10. Here, "outside the wall 10" refers to the side of the wall 10 located outdoors, and "inside the wall 10" refers to the side located indoors.

[0060] In this embodiment, the lower baffle 221 is connected to the side of the frame 21 near the outside of the wall 10. The lower surface of the lower baffle 221 is attached to the lower edge of the window opening 11. The upper surface of the lower baffle 221 is provided with a waterproof slope 222. The waterproof slope 222 extends downward towards the side near the outside of the wall 10. The slope of the waterproof slope 222 can be designed to be 5%, forming a detailed structure that integrates the subframe and drainage. The waterproof slope 222 helps to guide water flow to the outside of the wall 10 and improves the waterproof performance of the exterior wall panel.

[0061] Furthermore, a lower side flange 223 is connected to the side of the lower flange 221 near the outside of the wall 10. The lower flange 221 extends downwards, and the lower side flange 223 fits against the outer side of the wall 10. The lower flange 221 forms a protective barrier on the outer side of the wall 10, which helps prevent water seepage through the gap between the lower flange 221 and the lower edge of the window opening 11, thereby improving the overall waterproof performance of the exterior wall panel.

[0062] Please refer to Figure 4 As shown, the functional structural component 22 also includes an upper edge 224, which is attached to the upper edge of the window opening 11 and is located on the side of the subframe 20 near the outside of the wall 10.

[0063] In this embodiment, the upper baffle 224 is connected to the side of the frame 21 near the outside of the wall 10, and the upper surface of the lower baffle 221 is attached to the upper edge of the window opening 11. A drip groove 225 is provided on the lower surface of the upper baffle 224. The drip groove 225 is provided to prevent water from flowing along the lower surface of the lower baffle 221 into the inside of the wall 10, and to facilitate water dripping downwards. At the same time, the downward opening of the drip groove 225 also makes it less likely to accumulate dirt.

[0064] In this embodiment, the drip groove 225 is a rectangular groove. In other alternative embodiments, the drip groove 225 can be an arc-shaped groove or a groove of other shapes.

[0065] The upper retaining edge 224 is connected to an upper side retaining edge 226 on the side closest to the outside of the wall 10. The upper side retaining edge 226 extends upward and fits against the outer side of the wall 10. The upper retaining edge 224 forms a protective barrier on the outer side of the wall 10, which helps to prevent water seepage between the upper retaining edge 224 and the upper edge of the window opening 11, improves the overall waterproof performance of the exterior wall panel, and forms an integrated detailed structure of the subframe and drip edge.

[0066] The functional structural component 22 also includes a blocking component 227, which is embedded in the wall 10 and is set at an angle to the horizontal direction.

[0067] Please continue to refer to this. Figure 3 and Figure 4 As shown, in this embodiment, the blocking member 227 is perpendicular to the horizontal direction. The blocking member 227 is a plate structure and is located on the side of the insulation layer 102 near the outside of the wall 10. The blocking member 227 is connected below the lower baffle 221 and above the upper baffle 224. The blocking member 227 not only helps to stably connect the subframe 20 to the wall 10, but also plays a waterproof role similar to that of a waterstop.

[0068] In this embodiment, the blocking element 227 is disposed on the lower baffle 221 and the upper baffle 224 to prevent water seepage. In other alternative embodiments, baffles can be disposed on all four sides of the frame 21, and the blocking element 227 can be connected to each baffle. The placement of the baffles and the placement of the blocking element 227 can be flexibly adjusted based on actual usage requirements.

[0069] In this embodiment, the blocking member 227 is vertically arranged and perpendicular to the horizontal direction. In other alternative embodiments, the blocking member 227 may be inclined relative to the horizontal direction. For example, the blocking member 227 may be appropriately inclined towards the inside of the wall 10, and the angle of the blocking member 227 may be flexibly adjusted according to actual usage requirements.

[0070] Please continue to refer to this. Figure 3 and Figure 4 As shown, the functional structural component 22 also includes a reinforcing member 228, which is embedded in the wall 10 and is set at an angle to the vertical direction.

[0071] In this embodiment, the reinforcement member 228 is connected to the side of the frame 21 near the wall 10. The reinforcement member 228 has a plate-like structure and extends horizontally. One surface of the reinforcement member 228 is flush with the outer wall surface of the frame 21, while the other surface is beveled, resulting in a gradual change in the thickness of the reinforcement member 228. The side connected to the frame 21 is the thickest, and the side near the wall 10 is the thinnest. Through the arrangement of the reinforcement member 228, the subframe 20 is stably connected to the wall 10.

[0072] In other alternative embodiments, the reinforcement member 228 may also be a rod structure, a sawtooth structure, etc. The structure of the reinforcement member 228 and its angle with the vertical direction can be adjusted based on actual usage requirements.

[0073] Please continue to refer to this. Figure 3 As shown, the functional structural component 22 also includes a protrusion 229, which is disposed at the lower edge of the inner wall of the sub-frame 20 and is conformally embedded in the outer wall of the window frame 30. Here, the inner wall of the sub-frame 20 is defined with reference to the entire sub-frame 20; the sidewall within the cavity formed by the sub-frame 20 itself is considered the inner wall, and the sidewall outside the cavity is considered the outer wall. Similarly, the outer wall of the window frame 30 is defined with reference to the entire window frame 30; the sidewall within the cavity formed by the window frame 30 itself is considered the inner wall, and the sidewall outside the cavity is considered the outer wall.

[0074] In this embodiment, the protrusion 229 has a rectangular boss structure, and the lower edge of the corresponding outer wall of the window frame 30 has a groove. The protrusion 229 is fitted into the groove in a conformal manner. The protrusion 229 forms a water-blocking structure for the window system, further improving the waterproofing measures. At the same time, the protrusion 229 also assists in the installation of the window frame 30, improving the firmness of the window frame 30 installation.

[0075] In this embodiment, all parts of the functional structural component 22 are integrally formed, and the functional structural component 22 and the frame 21 are also integrally formed. The integrally formed subframe has better structural strength, better bonding performance with the wall, and more reliable waterproof performance.

[0076] The connection method in the precast cement-based exterior wall panels with integrated window frames described above is suitable for mass production in factories, has low requirements for on-site installation, good waterproof performance, and the connection nodes can meet the design specifications and related high-performance requirements for ultra-low energy consumption or near-zero energy consumption.

[0077] The aforementioned precast cement-based exterior wall panel with integrated window subframe has a higher degree of integration between the wall 10 and the subframe 20, which can better connect the precast cement-based exterior wall cladding system with the window system. This not only ensures the stability of the wall's thermal insulation performance, but also enhances the waterproofing performance at the connection between the wall and window system through the addition of waterproofing measures by the functional structural component 22, thereby improving the durability of building materials, simplifying the construction process, and increasing on-site work efficiency.

[0078] Waterproofing is enhanced by the inclusion of functional structural component 22. Overall, the cement-based exterior wall panel has a simple structure, is easy to construct, and has a low cost, making it suitable for large-scale application.

[0079] Combination Figure 6The image shows another embodiment of a precast cement-based exterior wall panel with integrated window subframes, compared to... Figure 2 The difference lies in the different structures of the functional structural component 22 and the different relative positions of the subframe 20 and the insulation layer 102.

[0080] The frame 21 is located on the side of the insulation layer 102 near the inside of the wall 10, and the side of the frame 21 near the outside of the wall 10 is attached to the insulation layer 102.

[0081] The lower surface of the lower baffle 221 is in contact with the insulation layer 102, and the upper surface of the upper baffle 224 is in contact with the insulation layer 102.

[0082] The reinforcing member 228 in the functional structural component 22 extends vertically and is connected to the upper and lower edges of the outer wall of the frame 21.

[0083] In other alternative embodiments, the frame 21 may also be disposed on the side of the insulation layer 102 near the outside of the wall 10, and the specific construction of the functional structural component 22 may be adaptively adjusted based on connection requirements, waterproofing requirements and insulation requirements.

[0084] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0085] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A precast cement-based exterior wall panel with integrated exterior window subframe, characterized in that, Includes: walls and subframes; The wall has a window opening, and the subframe is set inside the window opening; The subframe includes a frame and functional structural components integrally formed with the frame; At least its outer wall portion is embedded within the wall. The functional structural component is connected to the frame, and a portion of the functional structural component is embedded in the wall and / or a portion of the functional structural component is attached to the wall.

2. The precast cement-based exterior wall panel with integrated exterior window subframe as described in claim 1, characterized in that, The wall includes a concrete layer and an insulation layer, the insulation layer being located within the concrete layer, and the subframe being in contact with the insulation layer.

3. The precast cement-based exterior wall panel with integrated exterior window subframe as described in claim 1, characterized in that, The precast cement-based exterior wall panel with integrated exterior window subframe also includes a window frame, which is located inside the subframe, and the outer wall of the window frame is sealed to the inner wall of the subframe.

4. The precast cement-based exterior wall panel with integrated exterior window subframe as described in claim 1, characterized in that, The functional structural component includes a lower stop, which is fitted to the lower edge of the window opening and is located on the side of the subframe near the outside of the wall.

5. The precast cement-based exterior wall panel with integrated exterior window subframe as described in claim 4, characterized in that, A waterproof slope is provided on the lower edge, and the waterproof slope extends downward towards the side closer to the outside of the wall; and / or, a lower side edge is connected to the side of the lower edge closer to the outside of the wall, and the lower side edge is attached to the outside of the wall.

6. The precast cement-based exterior wall panel with integrated exterior window subframe as described in claim 1, characterized in that, The functional structural component also includes an upper retaining edge, which is attached to the upper edge of the window opening and is located on the side of the subframe near the outside of the wall.

7. The precast cement-based exterior wall panel with integrated exterior window subframe as described in claim 6, characterized in that, A drip groove is provided on the upper edge, and / or an upper side edge is connected to the side of the upper edge near the outside of the wall, the upper side edge being attached to the outside of the wall.

8. The precast cement-based exterior wall panel with integrated exterior window subframe as described in claim 1, characterized in that, The frame includes multiple frames and insulation material, with each frame being detachably connected end to end. Each frame has an inner cavity, and the insulation material fills the inner cavity of the frame.

9. The precast cement-based exterior wall panel with integrated exterior window subframe as described in any one of claims 2 to 8, characterized in that, The functional structural component also includes a blocking component, which is embedded in the wall and is set at an angle to the horizontal direction. When the wall includes an insulation layer, the blocking member is located on the side of the insulation layer closer to the outside of the wall. When the functional structural component includes a lower stop, the blocking component is connected below the lower stop; When the functional structural component includes an upper stop, the blocking component is connected above the upper stop.

10. The precast cement-based exterior wall panel with integrated exterior window subframe as described in any one of claims 2 to 8, characterized in that, The functional structural component also includes a reinforcing member, which is embedded in the wall and is set at an angle to the vertical direction. And / or, the functional structural component further includes a protrusion disposed on the lower edge of the inner wall of the subframe; when the precast cement-based exterior wall panel of the integrated exterior window subframe includes a window frame, the protrusion is conformally embedded into the outer wall of the window frame.