High airtightness full-system energy-saving window based on seamless welding process

Abstract

The application discloses a high-air-tightness full-system energy-saving window based on a seamless welding process, and belongs to the technical field of sash members for closing openings, and comprises a seamless welded window frame, a seamless welded sash, a heat-insulating glass assembly, a floating glass mounting structure, a heat-insulating constant-pressure floating pressure line assembly, a corner constant-pressure air-tightness compensation node, a multi-channel closed-loop sealing assembly and a drainage isolation assembly. The floating glass mounting structure allows the edge of the heat-insulating glass assembly to be limited to displace, the heat-insulating constant-pressure floating pressure line assembly provides a continuous elastic compression force to a glass notch sealing area, and the corner constant-pressure air-tightness compensation node receives adjacent straight edge compression relationships and compensates for corner sealing changes. Therefore, the glass edge thermal deformation is released, the notch is continuously compressed, and the corner air-tightness closed loop is cooperatively formed, so that the long-term air-tightness, heat preservation and energy saving and use reliability of an outer window on a high-rise windward surface in a severe cold or cold region are improved.

Description

Technical Field

[0001] This invention relates to the technical field of window sash components for closing openings, and more particularly to a high-airtightness, energy-saving window system based on a seamless welding process. Background Technology

[0002] With the continuous improvement of building energy efficiency standards, the thermal performance, airtightness, and durability of the building envelope have become important factors in reducing building operating energy consumption. As a concentrated area of ​​heat transfer and air infiltration within the building envelope, the performance of exterior windows directly affects winter heating load, summer air conditioning load, and indoor thermal comfort levels. System windows typically consist of a window frame, sash, glass components, seals, hardware, and drainage structure. Energy efficiency depends not only on the glass's heat transfer coefficient but also on the profile insulation structure, frame-sash overlap method, sealant compression, glass installation method, and overall window assembly precision. Existing energy-efficient windows often employ thermally broken aluminum profiles, double-glazed glass, low-emissivity coated glass, multiple sealing strips, and pressure-equalizing drainage structures to reduce heat conduction, convection, and air infiltration. In cold regions and high-rise buildings, exterior windows must withstand long-term temperature differences, wind pressure, rain, snow, and repeated opening and closing. Therefore, the entire window system needs to maintain a stable balance between thermal insulation, airtightness, watertightness, wind pressure resistance, and durability.

[0003] In existing technologies, some system windows improve the integrity of the window frame and sash corners through seamless welding, and enhance windproof, waterproof, and energy-saving performance through thermal break strips, multiple sealing strips, glass pressure lines, and drainage frames. Some system windows use multi-contact seals to create a tighter seal between the window frame and sash when closed. Other technologies use aluminum-plastic co-extruded composite profiles or high-performance insulated glass to reduce thermal bridges in the profiles and heat transfer through the glass. However, these technologies mostly focus on improving the performance of a single structure, resulting in insufficient coordination of stress, sealing, and thermal deformation among the components after assembly. Under long-term temperature changes, wind pressure changes, and opening and closing actions, the compression state of the sealing strips, the sealing state of the glass grooves, and the corner connection state are prone to change, thus affecting the overall airtightness and energy-saving effect of the window. Summary of the Invention

[0004] This invention overcomes the shortcomings of the prior art and provides a high-airtightness, energy-saving window system based on a seamless welding process.

[0005] To achieve the above objectives, the technical solution adopted by this invention is: a high-airtightness, energy-saving window system based on seamless welding technology, comprising:

[0006] Seamless welded window frames are used to form the external load-bearing structure and installation benchmark for the entire window;

[0007] A seamless welded window sash is installed inside the seamless welded window frame to support the glass and to form an opening and closing fit with the seamless welded window frame;

[0008] Insulating glass assembly, installed inside the seamless welded window sash, is used to reduce heat loss in the transparent area of ​​the window;

[0009] A floating glass mounting structure is disposed between the seamless welded window sash and the thermally insulated glass assembly to support and limit the thermally insulated glass assembly and allow limited displacement of the edges of the thermally insulated glass assembly.

[0010] A heat-insulating constant-pressure floating pressure line assembly is provided along the straight edge of the heat-insulating glass assembly and acts on the sealing area of ​​the glass groove through a heat-insulating support to provide a continuous elastic clamping force to the heat-insulating glass assembly.

[0011] A corner constant pressure airtightness compensation node is set in the corner area of ​​the seamless welded window sash and cooperates with the ends of the thermal insulation constant pressure floating pressure line assembly on the two adjacent straight edges to form a pressure transition and airtightness compensation at the corner of the window sash.

[0012] A multi-loop sealing assembly is disposed between the seamless welded window frame and the seamless welded window sash, and between the thermally insulated glass assembly and the seamless welded window sash, to form an airtight seal between the frame and the sash and an airtight seal between the glass groove.

[0013] And a drainage isolation component, which is disposed in the lower area of ​​the seamless welded window frame or the seamless welded window sash, for draining moisture from the outer cavity and isolating the drainage channel from the indoor airtight line;

[0014] The floating glass installation structure, the heat-insulating constant pressure floating pressure line assembly, and the corner constant pressure airtight compensation node work together to ensure that the heat-insulating glass assembly maintains continuous pressure on the glass groove even when the edge heat deformation is released, and to form an airtight closed loop at the corner of the seamless welded window sash by pressing the straight edge together.

[0015] In a preferred embodiment of the present invention, the thermally insulated constant pressure floating pressure line assembly includes a floating pressure line body, a thermally insulated pressure-bearing part, and an elastic pre-tightening part. The floating pressure line body is disposed opposite to the glass groove sealing area. The thermally insulated pressure-bearing part is disposed between the floating pressure line body and the seamless welded window sash. The elastic pre-tightening part is disposed between the thermally insulated pressure-bearing part and the floating pressure line body to provide a compensating pre-tightening force to the floating pressure line body when the compression of the glass groove seal changes.

[0016] In a preferred embodiment of the present invention, the heat-insulating constant pressure floating pressure line assembly further includes a compression limiting part and a sliding buffer part. The compression limiting part is disposed on the movement path of the floating pressure line body and is used to limit the maximum compression of the glass groove seal. The sliding buffer part is disposed between the floating pressure line body and the glass groove seal and is used to reduce frictional resistance and shearing action when a slight displacement occurs at the edge of the heat-insulating glass assembly.

[0017] In a preferred embodiment of the present invention, the elastic pre-tightening part is an elastic strip, a wave-shaped elastic sheet, or an elastic block that is continuously or intermittently arranged. The pre-tightening direction of the elastic pre-tightening part is toward the sealing area of ​​the glass groove, and the elastic pre-tightening part forms a thermal insulation support relationship with the seamless welded window sash through the thermal insulation and pressure-bearing part.

[0018] In a preferred embodiment of the present invention, the corner constant pressure airtight compensation node includes a corner airtight reinforcement, an elastic sealing part, a pressure line end receiving part, and a corner positioning part. The pressure line end receiving part is disposed on adjacent sides of the corner airtight reinforcement and respectively cooperates with the ends of the heat-insulating constant pressure floating pressure line assembly on two adjacent straight sides. The elastic sealing part is disposed inside the corner airtight reinforcement. The corner positioning part is used to position the corner of the glass groove seal and / or the corner of the frame and sash main airtight seal.

[0019] In a preferred embodiment of the present invention, the corner airtight reinforcement is provided with an adhesive guiding part, which is an adhesive guiding groove, an adhesive guiding hole or a combination thereof, and the elastic sealing part is filled in the adhesive guiding part to form an elastically recoverable corner seal; the pressure wire end receiving part is an insertion groove, an abutment step or a limiting cavity, and forms a compensation gap with the end of the heat-insulated constant pressure floating pressure wire assembly.

[0020] In a preferred embodiment of the present invention, the floating glass mounting structure includes a support portion, a limiting portion, a sealing mounting portion, a buffer gap portion, and a pressing guide portion. The support portion is used to support the heat-insulating glass assembly, the limiting portion is used to limit the lateral displacement of the heat-insulating glass assembly, the sealing mounting portion is used to install a glass groove seal, the buffer gap portion is used to accommodate a slight displacement of the edge of the heat-insulating glass assembly, and the pressing guide portion is used to guide the pressing direction of the heat-insulating constant pressure floating pressure line assembly.

[0021] In a preferred embodiment of the present invention, the multi-loop sealing assembly includes an outer water-blocking seal, a middle airtight seal, an inner thermal insulation seal, and a glass groove seal. The outer water-blocking seal is located at the outer overlap of the frame and sash, the middle airtight seal is located at the middle of the frame and sash overlap and forms the main airtight line, the inner thermal insulation seal is located on the inner side of the frame and sash, and the glass groove seal is located at the edge of the heat-insulating glass assembly. The corner portion of at least one of the middle airtight seal and the glass groove seal mates with the corner constant pressure airtight compensation node.

[0022] In a preferred embodiment of the present invention, the drainage isolation component includes an outer water inlet chamber, a middle isobaric chamber, a hidden drainage channel, an anti-backflow part, an inner airtight isolation part, and a drainage heat insulation part. The hidden drainage channel connects the outer water inlet chamber with the outdoor environment. The anti-backflow part is disposed at the hidden drainage channel. The inner airtight isolation part is disposed at the position of the middle isobaric chamber near the indoor side to block the airflow communication between the hidden drainage channel and the indoor airtight line.

[0023] In a preferred embodiment of the present invention, both the seamless welded window frame and the seamless welded window sash are formed by connecting the ends of a thermally insulated profile assembly and forming a closed structure through seamless corner welding. The thermally insulated profile assembly includes an outdoor profile section, an indoor profile section, a thermally insulated connection section disposed between the outdoor profile section and the indoor profile section, a pressure line mounting section for installing the thermally insulated constant pressure floating pressure line assembly, and a corner node mounting section for installing the corner constant pressure airtightness compensation node.

[0024] This invention addresses the shortcomings of the prior art and has the following beneficial effects:

[0025] (1) The present invention sets up a floating glass installation structure between the seamless welded window sash and the heat-insulating glass assembly, and cooperates with the heat-insulating constant pressure floating pressure line assembly, so that the edge of the heat-insulating glass assembly can generate a limited displacement under the action of temperature difference, while the floating pressure line continuously compensates for the compression change of the glass groove seal; compared with the existing rigid pressure line fixed pressing structure, the present invention does not need to simply increase the pressing force to maintain the airtightness of the groove, thereby reducing the stress concentration at the edge of the glass and improving the long-term sealing stability of the exterior window in extremely cold or cold regions.

[0026] (2) The present invention arranges the heat-insulating constant pressure floating pressure line assembly along the straight edge of the glass and provides continuous elastic pressure to the sealing area of ​​the glass groove through the heat-insulating pressure bearing path, so that the seal can still obtain compensating pressure under the conditions of low temperature hardening, compression attenuation and wind pressure slight fluctuation; compared with the method of directly using metal springs or increasing the number of rubber strips, the present invention reduces the addition of thermal bridges and local point stress, and further takes into account the airtightness of the glass groove and the heat preservation and energy saving of the window.

[0027] (3) The present invention sets a corner constant pressure airtightness compensation node at the corner of the seamless welded window sash, and makes it cooperate with the end of the heat-insulating constant pressure floating pressure line assembly of the two adjacent straight edges, the corner of the glass groove seal and the corner of the frame and sash main airtightness seal, so that the straight edge compression relationship can be continuously transitioned at the corner; compared with the existing structure where the pressure line ends at the corner, the present invention reduces the corner compression and end leakage channel, and further improves the airtightness closed-loop reliability under the positive and negative wind pressure fluctuations on the windward side of the high-rise building.

[0028] (4) By combining multiple closed-loop sealing components with drainage isolation components, the present invention forms a partitioned cooperation between the outer water blocking, the main airtightness, the indoor heat insulation and the lower drainage path, so that the water entering the outer cavity can be discharged, and the drainage channel does not pass through the indoor airtight line. Compared with the existing structure where the drainage hole is prone to forming a cold air backflow path, the present invention can still maintain the separation of drainage and airtightness under the combined action of rainwater, low temperature and high-rise wind pressure, further reducing the heat loss of wind infiltration. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the three-dimensional structure of the entire window according to a preferred embodiment of the present invention;

[0031] Figure 2 This is a partially enlarged schematic diagram of the floating glass mounting structure and the heat-insulating constant pressure floating pressure line assembly of a preferred embodiment of the present invention;

[0032] Figure 3 This is a block diagram of a corner constant pressure airtightness compensation node according to a preferred embodiment of the present invention;

[0033] In the diagram: 1. Seamless welded window frame; 2. Seamless welded window sash; 3. Insulated glass assembly; 4. Floating glass installation structure; 5. Insulated constant pressure floating pressure line assembly; 6. Corner constant pressure airtight compensation node; 7. Multi-loop sealing assembly; 8. Drainage isolation assembly; 41. Support part; 42. Limiting part; 43. Glass sealing installation part; 44. Buffer gap part; 45. Pressing guide part; 51. Floating pressure line body; 52. Insulated pressure bearing part; 53. Elastic pre-tightening part; 54. Compression limiting part; 55. Sliding buffer part. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein. Therefore, the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0036] Application Overview:

[0037] This invention targets exterior windows on the windward side of high-rise buildings in frigid or cold regions. These windows are exposed to significant indoor-outdoor temperature differences, leading to varying degrees of thermal deformation between the glass components, window sash profiles, and sealing strips. Simultaneously, the windward side of high-rise buildings experiences substantial positive and negative wind pressure fluctuations over extended periods, causing repeated micro-movements at the glass edges, pressure lines, and frame-sash overlap areas. Building energy-saving technologies require exterior windows to maintain low air permeability and minimal heat loss during long-term use. However, existing structures typically improve performance by increasing pressure line clamping force, adding more sealing strips, or strengthening corner connections. While this may be effective in normal environments, in frigid high-rise windward applications, high-performance insulated glass requires heat displacement release at its edges, while the window sash grooves need continuous compression to maintain airtightness. This creates a structural contradiction, resulting in insufficient long-term airtightness of the entire window.

[0038] Existing technologies struggle to meet these requirements because conventional glass pressure lines are mostly rigid snap-fit ​​or fixed clamping structures. Once assembled, the clamping force is essentially fixed and cannot compensate for factors such as low-temperature hardening of the sealing strip, permanent compression deformation, micro-displacement of the glass edges, and wind pressure. Simply increasing the clamping force would subject the glass edge sealing area to significant local stress, easily weakening the deformation adaptability of high-performance insulated glass edge seals. Conversely, reducing the clamping force would result in insufficient sealing at the glass groove. Introducing constant-pressure components such as springs could create new thermal bridges in the metal parts, and point-like pre-tightening could lead to uneven stress distribution. Drainage and condensation environments would also affect its stability. Furthermore, straight-edge clamping structures typically terminate at the corners of the window sash, making it difficult to maintain continuous compression of the glass sealing strip, the ends of the pressure lines, and the corners of the main airtight sealing strip, easily creating localized air infiltration channels.

[0039] This application addresses the aforementioned issues by incorporating a thermally insulated constant-pressure floating pressure line assembly and a corner constant-pressure airtightness compensation node. The thermally insulated constant-pressure floating pressure line assembly is positioned along the straight edge of the glass, allowing for slight edge displacement while maintaining continuous and evenly distributed sealing pressure. The corner constant-pressure airtightness compensation node is located at the corner of the seamless welded window sash and cooperates with the ends of the floating pressure lines on the adjacent two straight edges, the corner of the glass sealant strip, and the corner of the main airtight sealant strip. Through the guide groove, elastic sealing material, and sealant strip positioning structure, the straight edge pressure is continuously transferred at the corner. Thus, a synergistic relationship is formed between the release of heat deformation at the glass edge, the continuous pressure at the groove, and the corner airtightness closed loop, improving the long-term airtightness and building energy efficiency of the exterior windows on the windward side of high-rise buildings in severe cold weather.

[0040] Example 1:

[0041] This invention targets windward exterior windows of high-rise buildings in severely cold or cold regions. Severely cold or cold regions are defined as those where the average temperature of the coldest month is not greater than 0°C, and the number of days with an average daily temperature less than or equal to 5°C over a cumulative period is not less than 90 days. Specifically, severely cold regions are preferably those where the average temperature of the coldest month is not greater than -10°C, and the number of days with an average daily temperature less than or equal to 5°C over a cumulative period is not less than 145 days; cold regions are preferably those where the average temperature of the coldest month is greater than -10°C but not greater than 0°C, and the number of days with an average daily temperature less than or equal to 5°C over a cumulative period is not less than 90 days but less than 145 days. High-rise buildings are preferably residential buildings with a height greater than 27.0m and not greater than 100.0m. Windward exterior windows are preferably windows located on the building facade, where the angle between the outer normal of the facade and the prevailing winter wind direction is not greater than 45°, or windows located on facades under positive wind pressure control in wind load calculations.

[0042] like Figure 1 As shown, this embodiment provides a high-airtightness, energy-saving window system based on seamless welding technology, including:

[0043] Seamless welded window frames are used to form the external load-bearing structure and installation benchmark for the entire window;

[0044] The seamless welded window sash is set inside the seamless welded window frame to support the glass components and to form an opening and closing mechanism with the seamless welded window frame.

[0045] Insulated glass components, installed within seamless welded window sashes, are used to reduce heat loss in the transparent areas of the window.

[0046] A floating glass mounting structure is installed between the seamless welded window sash and the insulated glass assembly to define the installation space of the insulated glass assembly and allow for restricted displacement of its edges.

[0047] The constant pressure clamping component is installed within the floating glass mounting structure and acts on the edge sealing area of ​​the insulated glass assembly to provide a continuous elastic clamping force to the insulated glass assembly.

[0048] The corner airtight compensation structure is set in the corner area of ​​the seamless welded window sash and cooperates with the adjacent floating glass mounting structure and constant pressure clamping assembly to form a clamping force transition and airtight compensation at the corner of the window sash.

[0049] Multiple closed-loop sealing components are installed between the seamless welded window frame and the seamless welded window sash, as well as between the insulated glass assembly and the seamless welded window sash, to form an airtight and watertight seal for the entire window;

[0050] Thermal insulation profile components form the main profile structure of seamless welded window frames and seamless welded window sashes, used to reduce the thermal bridging effect in the frame-sash area;

[0051] Drainage isolation components, located in the lower area of ​​seamless welded window frames or seamless welded window sashes, are used to drain moisture that enters the outer cavity and to block the influence of the drainage channel on the indoor airtight line.

[0052] The seamless welded window frame and sash are both constructed from multiple insulated profiles connected end-to-end, forming a closed structure through seamless corner welding. The insulated glass assembly is installed within the glass installation space defined by the seamless welded window sash. A floating glass installation structure is located at the edge of the insulated glass assembly, between it and the seamless welded window sash. The floating glass installation structure includes at least a support, a limiting part, and a sealing installation part. The support is used to support the insulated glass assembly; the limiting part is used to restrict the lateral displacement of the insulated glass assembly; the sealing installation part is used to accommodate the seal; a constant pressure clamping assembly is provided along at least one straight edge of the insulated glass assembly; the constant pressure clamping assembly is indirectly connected to the seamless welded window sash through an insulated support component.

[0053] Therefore, the constant pressure clamping assembly reduces heat transfer between the indoor and outdoor areas when providing clamping force. The corner airtight compensation structure is located between the constant pressure clamping assemblies on two adjacent straight edges. This corner airtight compensation structure corresponds to the corner area of ​​the multi-loop sealing assembly. Thus, the clamping seal at the straight edges can be continuously transitioned at the corner.

[0054] In high-rise buildings in cold climates, exterior windows are subjected to significant temperature differences over long periods. Insulated glass components, seamlessly welded window sashes, and seals are prone to various thermal deformations. Furthermore, windward-facing windows are subjected to alternating positive and negative wind pressures. These conditions can affect the compression of the glass grooves and the continuity of the frame-sash seal. This embodiment reduces air infiltration, lowers heat loss, and improves building heating efficiency through the systematic coordination of the window frame, window sash, glass installation, and sealing structure.

[0055] The aforementioned components are not simply combined; rather, they work together under varying temperature, wind pressure, and opening / closing stress conditions. The seamless welded window frame provides the foundation for the entire window installation and its external load-bearing boundary. The seamless welded window sash provides the installation foundation for the insulated glass assembly, floating glass mounting structure, constant pressure clamping assembly, and corner airtightness compensation structure. The floating glass mounting structure limits the installation, support, and restricted displacement space of the insulated glass assembly. The constant pressure clamping assembly acts directly on the edge sealing area of ​​the insulated glass assembly. The constant pressure clamping assembly compensates for the compression of the seals, micro-displacement of the glass edges, and local deformation caused by wind pressure. The corner airtightness compensation structure transitions the clamping force and sealing state between adjacent straight edges.

[0056] Therefore, the edge seals of the thermally insulated glass assembly, the end seals of the compression structure, and the main seals of the frame and sash can maintain continuity at the corners; the multi-loop sealing assembly further ensures the airtightness and watertightness between the seamless welded window frame and the seamless welded window sash, as well as between the thermally insulated glass assembly and the seamless welded window sash; the drainage isolation assembly maintains the isolation relationship between the outer drainage channel and the indoor airtight line in the drainage state.

[0057] In this embodiment, the constant pressure clamping component is used to resolve the contradiction between the need for the thermal insulation glass assembly to release edge thermal deformation and the need for continuous airtight clamping at the glass groove. Thus, the thermal insulation glass assembly can still obtain stable clamping force even when it experiences slight displacement. The corner airtight compensation structure is used to solve the problems that easily occur at the corners of the window sash after the straight edge clamping structure terminates, such as air leakage at the pressure line end, insufficient compression of the sealing strip at the corner, and discontinuous corner sealing. Therefore, the clamping force and sealing structure of adjacent straight edges can form a continuous transition at the corner. There is a coupling relationship between the two: the constant pressure clamping component maintains elastic clamping at the straight edges; the corner airtight compensation structure receives and compensates for this clamping relationship at the corner; together, they ensure that the edge floating, glass groove clamping, and corner airtight closure of the thermal insulation glass assembly remain consistent.

[0058] The main technical challenge of this embodiment lies in the contradiction between the thermal deformation of the edge of the insulated glass assembly and the continuous compression of the glass groove. The straight-edge compression structure is difficult to transition continuously at the corner of the window sash, and the drainage, insulation, and airtight structures are prone to mutual interference under the conditions of high-rise windward surfaces. To address this, this embodiment solves the problem of limited floating and continuous compression of the insulated glass assembly through a floating glass installation structure and a constant-pressure compression assembly; it solves the problem of continuous transition of the sealing and compression relationship between adjacent straight edges at the corner through a corner airtight compensation structure; and it solves the coordination problem between airtightness, insulation, and drainage through a multi-loop sealing assembly, an insulated profile assembly, and a drainage isolation assembly. Thus, a high-airtightness, energy-saving window system based on seamless welding technology can combine airtightness stability, thermal insulation and energy saving, and structural durability under cold climate, high-rise wind pressure, and long-term opening and closing conditions.

[0059] Example 2:

[0060] The technical solution in this embodiment is a further refinement based on the above embodiment 1.

[0061] Seamlessly welded window frames are installed within building openings and form an opening and closing relationship with seamlessly welded window sashes. These frames form the load-bearing boundary of the entire window perimeter and provide an installation base for the insulated glass components, frame-sash sealing structure, and drainage isolation structure. In cold climates, particularly on the windward side of high-rise buildings, they also improve the continuity of the frame corners, reduce air infiltration caused by corner seams, and lower building heating energy consumption.

[0062] In this embodiment, the seamless welded window frame includes a frame insulation profile, a corner welded connection, a frame-sash receiving part, a sealing bearing part, and an opening installation part. The frame insulation profiles are connected end-to-end to form the main body of the window frame; the corner welded connection is located at the connecting ends of adjacent frame insulation profiles; the frame-sash receiving part is located inside the main body of the window frame and is used to receive the seamless welded window sash; the sealing bearing part is located near the frame-sash receiving part and is used to install multiple closed-loop sealing components; the opening installation part is located on the outer periphery of the main body of the window frame and is used to connect to the building wall.

[0063] Seamless welded window frames refer to closed frame structures formed by seamless connection of profile ends and seamless welding at corners. These are used for high-rise exterior windows in cold climates to withstand wind pressure, install window sashes, and establish an airtight boundary. Insulated frame profiles refer to frame profiles with insulated joints to reduce thermal bridging in the window frame area. Corner welded joints refer to the connection areas formed by welding the ends of adjacent profiles, used to improve the continuity of the corner structure. Sealing bearing parts refer to grooves or steps used to install seals, forming an airtight interface between the frame and sash. Corner welded joints form a continuous closed boundary through welding, reducing corner gap changes under high-rise wind pressure. Insulated frame profiles reduce heat transfer between indoors and outdoors through insulated joints, effectively reducing frame heat loss in environments where the average temperature of the coldest month does not exceed 0°C.

[0064] Specifically, the seamless welded window frame is located on the outer perimeter of the entire window. Its outer perimeter is connected to the building wall through the opening installation part, and its inner side is matched with the seamless welded window sash through the frame-sash support part. The sealing support part is connected to multiple closed-loop sealing components. When the drainage isolation component is located at the bottom of the seamless welded window frame, it can form a drainage isolation relationship with the frame insulation profile. Thus, the seamless welded window frame can maintain the stability of the outer structure under the action of wind pressure, temperature difference and opening and closing load. When the window is closed, the frame-sash support part and the seamless welded window sash form a frame-sash overlap area, and the sealing support part supports multiple closed-loop sealing components, so that a continuous seal is formed between the frame and sash. When the window is subjected to positive pressure from the windward side, the corner welded connection part reduces the tendency of corner opening. When the window is subjected to low temperature, the frame insulation profile reduces the heat loss from the interior.

[0065] In some embodiments, the frame insulation profile can be a thermally broken aluminum profile or an aluminum-plastic composite profile; the insulation connection can be an insulation strip or an insulation cavity structure. The frame depth of the frame insulation profile is preferably 65mm~120mm, more preferably 75mm~100mm; below this range, the space for insulation and sealing arrangement is insufficient, and above this range, the profile cost and installation thickness increase. The sealing bearing part can be set with two to four sealing grooves to adapt to different airtightness requirements.

[0066] The seamless welded window frame, seamless welded window sash, multi-loop sealing components, and drainage isolation components work synergistically: the seamless welded window frame provides the outer load-bearing boundary, the seamless welded window sash provides the foundation for opening and closing and glass load-bearing, the multi-loop sealing components ensure the airtightness of the frame-sash overlap, and the drainage isolation components maintain the separation of drainage paths from airtight paths. Through this synergy, the entire window can simultaneously reduce air infiltration and heat transfer loss, avoiding the problem of discontinuous sealing that still exists when only the window frame is strengthened.

[0067] In this embodiment, the seamless welded window frame solves the problems of frame corner continuity and frame thermal bridging through the frame insulation profile and corner welded connection, enabling the seamless welded window frame to provide a stable installation foundation under the conditions of high-rise windward exterior windows in cold climates, and providing structural protection for building energy conservation and overall window airtightness.

[0068] Seamlessly welded window sashes are installed within seamlessly welded window frames and form an opening and closing relationship with the frames. The seamlessly welded window sashes support the insulated glass components and provide a mounting base for floating glass installation structures, constant pressure clamping components, and corner airtightness compensation structures. In cold climates and high-rise windward scenarios, they also improve the continuity of the sash corners, reduce changes in opening and closing gaps, and minimize increased heating energy consumption caused by air infiltration.

[0069] In this embodiment, the seamless welded window sash includes a sash body thermal insulation profile, a corner welded connection, a glass support portion, a clamping component mounting portion, a corner compensation mounting portion, and a frame-sash overlap portion. The sash body thermal insulation profiles are connected end-to-end to form the window sash body; the corner welded connection is located at the connection end of adjacent sash body thermal insulation profiles; the glass support portion is located inside the window sash body and is used to install the thermal insulation glass assembly; the clamping component mounting portion is located near the glass support portion and is used to install a constant pressure clamping assembly; the corner compensation mounting portion is located at the corner of the window sash body and is used to install a corner airtight compensation structure; the frame-sash overlap portion is located on the outside of the window sash body and is used to form an overlap seal with the seamless welded window frame.

[0070] Seamless welded window sashes refer to closed sash structures formed by connecting the ends of profiles and seamlessly welding the corners. These structures support the glass, transmit wind pressure, and establish a sealing boundary for opening and closing. Insulated sash profiles are window sash profiles with insulated joints to reduce thermal bridging in the window sash area. Glass bearing sections are grooves or support surfaces used to accommodate the glass edges. Pressure assembly mounting sections are installation areas for constant pressure components. Corner compensation mounting sections are areas located at the corners of the window sash, used to accommodate corner airtight compensation structures. The corner welded joints reduce corner gaps and deformation under wind pressure on the upper floors. The pressure assembly mounting sections provide space, a stress interface, and thermal support for the constant pressure components, ensuring the window sash maintains glass groove clamping stability even under low temperatures and wind pressure.

[0071] Specifically, the seamless welded window sash is located inside the seamless welded window frame. Its outer periphery mates with the seamless welded window frame via a frame-sash overlap, which connects to multiple closed-loop sealing components to form an opening and closing sealing interface. Its inner side mates with the insulated glass assembly via a glass load-bearing component, a pressure-adjusting component mounting part connects to a constant-pressure pressure-adjusting component, and a corner compensation mounting part connects to a corner airtightness compensation structure. Thus, the seamless welded window sash can maintain stable glass load-bearing and sealing under opening and closing loads, wind pressure, and temperature differences.

[0072] When the exterior window is closed, the frame and sash overlap is pressed together with multiple closed-loop sealing components to form an airtight boundary between the frame and sash. When the insulated glass assembly is subjected to wind pressure, the glass load-bearing part transmits the glass load, and the pressing component mounting part supports the constant pressure pressing component, keeping the glass seal in a compressed state. When the low temperature causes the elasticity of the seal to decrease, the constant pressure pressing component can still maintain the edge sealing pressure through the support interface provided by the seamless welded window sash.

[0073] In some embodiments, the sash insulation profile can be a thermally broken aluminum profile or an aluminum-plastic composite profile; the sash depth is preferably 60mm~110mm, more preferably 70mm~95mm; if it is lower than this range, the glass installation space and sealing arrangement space will be insufficient, and if it is higher than this range, the weight of the window sash and the hardware load will increase. The overlap width of the frame-sash joint is preferably 8mm~25mm, more preferably 12mm~20mm, to balance airtight compression and opening / closing resistance.

[0074] The seamless welded window sash works synergistically with the insulated glass assembly, constant pressure clamping assembly, corner airtightness compensation structure, and multi-loop sealing assembly: the seamless welded window sash provides the load-bearing foundation for the glass, the insulated glass assembly reduces heat transfer in the transparent area, the constant pressure clamping assembly maintains continuous compression at the glass groove, the corner airtightness compensation structure supports the straight edge compression relationship, and the multi-loop sealing assembly ensures a tight seal at the frame-sash overlap. Through this synergy, the entire window can simultaneously reduce air leakage at the glass edges and between the frame and sash, avoiding the problem of discontinuous corner sealing that still exists when only the window sash rigidity is increased.

[0075] In this embodiment, the seamless welded window sash solves the problems of glass load-bearing, sash body insulation and pressure support through the sash body thermal insulation profile, glass load-bearing part and clamping component installation part, so that the seamless welded window sash can provide a stable glass load-bearing foundation under the cold climate high-rise windward side, and provide structural support for building energy conservation and long-term airtightness.

[0076] The insulated glass assembly is housed within a seamlessly welded window sash, forming a supporting relationship with the floating glass mounting structure and an elastically clamping relationship with the constant-pressure clamping assembly. This insulated glass assembly reduces heat loss in the transparent area, minimizes the escape of heating heat, and reduces the risk of condensation at the glass edges, providing a thermal insulation foundation for windward exterior windows on high-rise buildings in cold climates.

[0077] In this embodiment, the insulated glass assembly includes an outer glass pane, an inner glass pane, and an edge sealing structure. The outer glass pane is positioned closer to the outdoor side, and the inner glass pane is positioned closer to the indoor side. The edge sealing structure is located between the outer and inner glass panes to form an insulated cavity and reduce heat transfer within the glass area. The edge of the insulated glass assembly cooperates with a floating glass mounting structure and a constant pressure clamping assembly.

[0078] The insulated glass assembly refers to a glass unit with an insulated cavity, used for high-rise exterior windows in cold climates. The outer glass pane withstands outdoor wind pressure and temperature changes; the inner glass pane reduces heat loss from the interior; and the edge sealing structure seals the insulated cavity and maintains the stability of the glass unit. In some embodiments, the edge sealing structure can be a flexible edge sealing structure, which uses deformable edge seals to allow slight relative displacement between the glass panes, reducing edge thermal stress concentration under large temperature differences, and cooperating with a constant pressure clamping assembly to prevent the glass edges from being rigidly pressed shut.

[0079] Specifically, the insulated glass assembly is located within the glass installation space of the seamless welded window sash. Its lower edge mates with the support portion of the floating glass installation structure, and its side edge mates with the limiting portion. The inner edge mates with the constant pressure clamping assembly, the outer edge mates with the outer glass seal, and the corners are adjacent to the corner airtightness compensation structure. Through these positional relationships, the insulated glass assembly can generate slight edge movements within a confined range and maintain a controlled support state under wind pressure, temperature difference, and opening / closing actions, which helps reduce glass edge stress and maintain the airtightness of the glass groove.

[0080] In this embodiment, the heat-insulating glass assembly reduces heat transfer through the heat-insulating cavity and maintains cavity stability through the edge sealing structure. When the exterior window is in a low-temperature environment, the outer glass pane is exposed to the outdoor low temperature, while the inner glass pane is closer to the indoor heating environment, and the edge sealing structure reduces edge heat exchange. When wind pressure fluctuations occur on the windward side of a high-rise building, the heat-insulating glass assembly undergoes slight deformation. The floating glass installation structure allows for restricted edge displacement, and the constant pressure clamping assembly continuously compensates for the sealing clamping amount.

[0081] Compared to ordinary glass assemblies, the heat-insulating glass assembly of this embodiment can reduce heat loss in the transparent area; compared to rigid edge-sealed glass, the flexible edge-sealed structure can adapt to temperature difference deformation; compared to ordinary pressure line installation method, the heat-insulating glass assembly of this embodiment, when combined with the constant pressure clamping assembly, can avoid the concentration of clamping force.

[0082] In some embodiments, the insulated glass assembly can be double-glazed glass, low-emissivity double-glazed glass, vacuum insulated glass, or vacuum composite double-glazed glass. The total thickness of the insulated glass assembly is preferably 24mm to 60mm, more preferably 32mm to 48mm; below this range, the insulation cavity space is insufficient, and above this range, the load on the window sash increases. The heat transfer coefficient of the insulated glass assembly is preferably not greater than 1.5W / m². 2 K, further preferably not greater than 1.0 W / m 2 • K. The edge sealing structure may include a warm edge spacer, a flexible hermetic seal, or a desiccant reservoir; the flexible hermetic seal may have corrugated sections, pleated sections, or embossed sections to absorb minor edge deformation.

[0083] The insulated glass assembly works synergistically with the floating glass mounting structure, the constant pressure clamping assembly, and the corner airtightness compensation structure: the insulated glass assembly reduces heat transfer in the transparent area, the floating glass mounting structure provides confined displacement space, the constant pressure clamping assembly maintains the glass groove tightness, and the corner airtightness compensation structure maintains continuous corner sealing. Through this synergy, the entire window can simultaneously reduce heat loss and air infiltration, avoiding edge seal attenuation caused by installation stress when using high-performance glass alone.

[0084] The floating glass installation structure is set inside the seamless welded window sash and located on the outer side of the edge of the thermally insulated glass assembly. This structure forms a supporting, limiting and sealing relationship with the thermally insulated glass assembly, which is used to solve the problem that it is difficult to simultaneously meet the requirements of slight displacement and airtight compression after the edge of the glass is affected by temperature difference. At the same time, it provides installation space for the constant pressure compression assembly and provides a stable groove interface for the building's energy-saving exterior windows.

[0085] In this embodiment, the floating glass mounting structure includes a support portion, a limiting portion, a sealing mounting portion, a buffer gap portion, and a pressing guide portion. The support portion is located on the lower side of the glass mounting space to support the heat-insulating glass assembly; the limiting portion is located laterally in the glass mounting space to limit the lateral displacement of the heat-insulating glass assembly; the sealing mounting portion is located on both sides of the glass edge to install glass seals; the buffer gap portion is located on the outer periphery of the heat-insulating glass assembly edge to accommodate minor edge displacement; and the pressing guide portion is located adjacent to the constant pressure pressing assembly to guide the direction of the pressing force.

[0086] The floating glass installation structure refers to an installation groove structure that allows restricted movement of the glass edges, used for windward exterior windows on high-rise buildings in cold climates. The support section bears the weight of the glass; the limiting section restricts lateral displacement of the glass; the sealing installation section accommodates the glass sealant strip; the buffer gap section allows space for glass edge displacement; and the clamping guide section defines the clamping direction. The buffer gap section adapts to temperature deformation of the insulated glass assembly through its pre-defined dimensions and positional relationships. The clamping guide section cooperates with the constant pressure clamping assembly to transmit the elastic clamping force along a predetermined direction, preventing clamping force deviation and reducing localized stress at the glass edges.

[0087] Specifically, the floating glass mounting structure is located in the inner circumferential area of ​​the seamless welded window sash: the support part is located below the insulated glass assembly, the limiting part is located on the side of the insulated glass assembly, the sealing mounting part is located on both the inner and outer sides of the insulated glass assembly, the buffer gap part is located on the outer periphery of the edge of the insulated glass assembly, and the pressing guide part is located between the constant pressure pressing assembly and the glass seal. The floating glass mounting structure can be integrally molded with the seamless welded window sash, or it can be embedded or snap-fitted; the connection with the insulated glass assembly is preferably an elastic support connection, and the connection with the glass seal is preferably a sealing snap-fit ​​connection.

[0088] In this embodiment, the floating glass installation structure transforms the rigid constraint between the glass edge and the window sash profile into a restricted floating support relationship. When the exterior window is in a low-temperature environment, the thermally insulated glass assembly and the seamlessly welded window sash undergo different thermal deformations. The buffer gap accommodates slight displacement of the glass edge, the support portion maintains vertical support of the glass, and the limiting portion prevents excessive lateral displacement of the glass. When the exterior window is subjected to wind pressure from the windward side, the pressing guide portion, in conjunction with the constant pressure pressing assembly, keeps the glass seal under controlled compression.

[0089] Compared to ordinary glass mounting grooves, the floating glass mounting structure of this embodiment avoids the glass edges being rigidly clamped; compared to simply enlarging the groove gap, this embodiment also maintains the stability of the glass position and the airtightness of the groove through limiting parts and sealing mounting parts. Therefore, the insulated glass assembly can maintain controlled floating and continuous sealing under cold climates and high-altitude wind pressure.

[0090] In some embodiments, the width of the buffer gap is preferably 0.5mm to 3mm, more preferably 1mm to 2mm; if it is below this range, the glass edge displacement is insufficient, and if it is above this range, the glass positioning stability decreases. The support part may be provided with an elastic support pad, the compression of which is preferably 5% to 25%; the limiting part may be provided with an elastic limiting pad; the sealing installation part may include an inner rubber strip groove and an outer rubber strip groove; the pressing guide part may be a slope, a stepped surface, or a guide groove, used to guide the pressing direction of the constant pressure pressing assembly.

[0091] like Figure 2 As shown, the floating glass mounting structure works synergistically with the insulated glass assembly, the constant pressure clamping assembly, and the corner airtightness compensation structure: the insulated glass assembly reduces heat transfer in the transparent area, the floating glass mounting structure provides confined displacement space, the constant pressure clamping assembly provides continuous clamping force, and the corner airtightness compensation structure maintains the continuity of the corner transition. Through this synergy, the entire window can simultaneously achieve stress relief at the glass edges, airtightness at the grooves, and building energy efficiency.

[0092] The constant pressure clamping component is installed within the floating glass mounting structure and located on one side of the edge of the insulated glass component. This component forms an elastic clamping relationship with the insulated glass component and a thermal support relationship with the seamless welded window sash. It is used to solve the problem that the glass edge needs to float slightly while the glass groove needs to be continuously airtightly clamped. At the same time, it compensates for the changes in clamping force caused by the low temperature hardening, compression attenuation and slight wind pressure fluctuations of the seal.

[0093] In this embodiment, the constant pressure clamping assembly includes a floating pressure line body, a thermal insulation pressure-bearing part, an elastic pre-tightening part, a compression limiting part, and a sliding buffer part. The floating pressure line body is disposed on the inner edge of the thermal insulation glass assembly; the thermal insulation pressure-bearing part is disposed between the floating pressure line body and the seamless welded window sash; the elastic pre-tightening part is disposed between the thermal insulation pressure-bearing part and the floating pressure line body to provide continuous pre-tightening force; the compression limiting part is disposed on the floating pressure line body or the thermal insulation pressure-bearing part to limit the maximum compression amount; and the sliding buffer part is disposed between the floating pressure line body and the glass seal to allow for slight edge movement.

[0094] The constant-pressure clamping assembly refers to a clamping structure capable of continuously applying elastic clamping force, used for windward exterior windows on high-rise buildings in cold climates; the floating pressure line body is used to clamp the glass seals; the thermal insulation pressure-bearing part is used to block metal thermal bridges; the elastic pre-tightening part is used to compensate for changes in seal compression; and the sliding buffer part is used to reduce shear force at the glass edges. The elastic pre-tightening part, together with the thermal insulation pressure-bearing part and the floating pressure line body, forms a protected distributed pre-tightening structure, preventing the pre-tightening component from directly bridging indoor and outdoor metal parts; the compression limiting part is used to limit the working compression range of the glass seals, preventing the insulated glass assembly from being over-compressed.

[0095] Specifically, the constant pressure clamping assembly is located within the glass installation space of the seamless welded window sash: one side of the floating pressure line body is clamped to the glass seal, and the other side is clamped to the elastic pre-tightening part; the side of the elastic pre-tightening part away from the floating pressure line body is clamped to the thermal insulation pressure-bearing part, which is connected to the seamless welded window sash; the compression limiting part is located on the movement path of the floating pressure line body, and the sliding buffer part is located in the clamping contact area. The constant pressure clamping assembly and the seamless welded window sash can be connected by snap-fit, detachable connection, or limiting embedding connection; the floating pressure line body and the elastic pre-tightening part can be connected by abutment connection or groove limiting connection.

[0096] In this embodiment, the constant pressure clamping assembly transforms the fixed clamping relationship of ordinary clamping lines into an elastically compensated clamping relationship. When the window is closed, the elastic pre-tightening part pushes the floating clamping line body to compress the glass seal; when the window is subjected to wind pressure from the windward side, the heat-insulating glass assembly undergoes a slight displacement, the sliding buffer part reduces edge friction, the elastic pre-tightening part compensates for the compression change, and the compression limiting part prevents excessive clamping; when the window is in a low-temperature environment, the elasticity of the glass seal decreases, the elastic pre-tightening part can compensate for this decrease, and the heat-insulating pressure-bearing part reduces heat transfer along the pre-tightening path. Thus, the constant pressure clamping assembly maintains the airtightness of the groove while reducing additional thermal bridges.

[0097] In some embodiments, the elastic preload can be an elastic strip, a corrugated elastic sheet, or an elastic block, and can be made of rubber, silicone rubber, thermoplastic elastomer, or composite elastic material; when a metal part is used, a heat-insulating coating layer is preferred. The elastic preload can be provided at intervals or continuously along the edge of the glass. The working compression of the glass seal is preferably 8% to 30%, more preferably 12% to 25%; the compensation stroke of the elastic preload is preferably 0.5 mm to 3 mm, more preferably 1 mm to 2 mm; the preload per unit length of the floating pressure line body is preferably 5 N / 100 mm to 40 N / 100 mm, more preferably 10 N / 100 mm to 30 N / 100 mm; the coefficient of friction of the sliding buffer is preferably not greater than 0.35, more preferably not greater than 0.25.

[0098] The constant-pressure clamping assembly works synergistically with the floating glass mounting structure, the insulated glass assembly, the corner airtightness compensation structure, and the multi-loop sealing assembly: the floating glass mounting structure provides confined displacement space, the insulated glass assembly provides a low-heat-transfer transparent enclosure, the constant-pressure clamping assembly provides continuous sealing pressure, the corner airtightness compensation structure supports the straight-edge clamping relationship, and the multi-loop sealing assembly forms the airtight boundary between the frame and sash. Through this synergy, the entire window can simultaneously achieve stress relief at the glass edges, maintain airtightness at the grooves, and contribute to building energy conservation, avoiding the air leakage problem at the pressure line ends that still exists when adding sealing strips alone.

[0099] like Figure 3 As shown, the corner airtight compensation structure is set at the corner of the seamless welded window sash and is located at the intersection of two adjacent straight edges. This structure forms a pressing transition relationship with the constant pressure pressing component and a corner sealing relationship with the multi-closed-loop sealing component. It is used to solve the problem that the sealing is discontinuous at the end of the pressure line, the corner of the glass sealant strip and the corner of the main sealing of the frame and sash after the straight edge pressing structure terminates at the corner, so that the corner area can maintain airtight stability under the action of temperature difference and wind pressure.

[0100] In this embodiment, the corner airtightness compensation structure includes a corner airtightness reinforcement, an adhesive guiding part, an elastic sealing part, a pressure line end receiving part, a glass sealant corner positioning part, and a main sealing corner positioning part. Specifically, the corner airtightness reinforcement is disposed within the inner cavity of the corner of the seamless welded window sash; the adhesive guiding part is disposed within the corner airtightness reinforcement; the elastic sealing part fills within the adhesive guiding part; the pressure line end receiving part is disposed on adjacent sides of the corner airtightness reinforcement; the glass sealant corner positioning part is located at the corner of the glass installation space; and the main sealing corner positioning part is located at the corner of the frame-sash overlap area.

[0101] The corner airtight compensation structure refers to the airtight transition structure located at the corner of the window sash, used to connect the straight edge pressing structure and the corner sealing structure; the corner airtight reinforcement provides positioning, support, and a base for guiding the sealant; the sealant guide guides the sealant into the corner cavity; the elastic sealant is a sealant that retains its elastic recovery capability after curing; the pressure line end receiving part receives the end of the floating pressure line body; the glass sealant strip corner positioning part and the main seal corner positioning part are used to position the corners of the glass sealant and the frame and sash main sealant, respectively. This structure, through the sealant guide part, the elastic sealant, and the corner positioning part, forms a compensable airtight node at the corner, simultaneously undertaking the functions of pressure force transition, sealant positioning, and corner airtight compensation.

[0102] Specifically, the corner airtight compensation structure is located at the four corners of the seamless welded window sash: one side of the corner airtight reinforcement mates with a constant pressure clamping assembly on one straight edge, and the other side mates with a constant pressure clamping assembly on the adjacent straight edge; the end receiving part of the pressure line abuts or inserts with the end of the floating pressure line body; the corner positioning part of the glass sealant mates with the glass sealant; the corner positioning part of the main seal mates with the main airtight sealant in the multi-closed-loop sealing assembly. The corner airtight reinforcement and the seamless welded window sash can be connected by embedding, snap-fitting, adhesive bonding, or screwing, or it can be integrally formed with the window sash profile; a filling seal connection is preferably formed between the elastic sealing part and the adhesive guiding part; a restricted floating connection is preferably formed between the end receiving part of the pressure line and the floating pressure line body.

[0103] In this embodiment, the corner airtight compensation structure transforms the compression relationship between adjacent straight edges into a continuous transition relationship at the corner. When the thermally insulated glass assembly experiences a slight displacement at the edge, the constant pressure compression component compensates for the compression amount along the straight edge. The straight edge compression force is transmitted to the end receiving part of the pressure line, the corner airtight reinforcement acts as the receiving end, the elastic sealing part absorbs local compression changes, the glass seal corner positioning part restricts seal strip displacement, and the main sealing corner positioning part maintains the continuity of the frame and sash main seal. When the exterior window is subjected to positive pressure from the windward side of a high-rise building, this structure bears the load at the end of the pressure line, making it less likely for gaps to form at the end of the pressure line. When the exterior window is subjected to low temperatures, the elastic sealing part provides local compensation, making the corner seal less likely to fail due to hardening of the seal strip.

[0104] In some embodiments, the corner airtight reinforcement can be an L-shaped structure, a rounded block structure, or a modular assembly structure, and can be made of aluminum alloy, reinforced plastic, or composite material, preferably a low thermal conductivity composite material or a metal part with a heat insulation layer. The length of the two sides of the corner airtight reinforcement is preferably 20mm to 80mm, more preferably 30mm to 60mm. The adhesive guiding part can be an adhesive guiding groove, an adhesive guiding hole, or a combination of both, and its width is preferably 1mm to 8mm, more preferably 2mm to 5mm. The elastic sealing part can be made of silicone sealant, polyurethane sealant, butyl rubber, or foamed sealing material, and the Shore A hardness after curing is preferably 20 to 60, more preferably 25 to 45. The end receiving part of the pressure line can be a plug groove, an abutment step, or a limiting cavity, and a compensation gap of 0.2mm to 2mm is preferably provided between it and the floating pressure line body, more preferably 0.5mm to 1.2mm.

[0105] The corner airtight compensation structure works synergistically with the constant pressure clamping assembly, floating glass mounting structure, multi-loop sealing assembly, and seamless welded window sash: the constant pressure clamping assembly maintains the straight-edge clamping force, the corner airtight compensation structure absorbs the straight-edge clamping force, the floating glass mounting structure provides confined displacement space, the multi-loop sealing assembly forms the frame-sash airtight boundary, and the seamless welded window sash provides the foundation for closed corners. Through this synergy, the entire window can maintain continuous airtightness at the glass groove and between the frame and sash under cold climates and high-altitude wind pressure.

[0106] Multiple closed-loop sealing components are installed between the seamless welded window frame and the seamless welded window sash, as well as between the insulated glass assembly and the seamless welded window sash. This assembly forms a sealed load-bearing relationship with the seamless welded window frame and a compression seal relationship with the seamless welded window sash. It is used to reduce air infiltration and rainwater ingress, providing an airtight foundation for the windward exterior windows of high-rise buildings in cold climates, while reducing the loss of heating heat.

[0107] In this embodiment, the multi-loop sealing assembly includes an outer water-blocking seal, a central airtight seal, an indoor thermal insulation seal, and a glass groove seal. The outer water-blocking seal is located near the outdoor side to prevent rainwater from entering; the central airtight seal is located at the middle of the frame-sash overlap to form the main airtight line; the indoor thermal insulation seal is located near the indoor side to reduce cold air infiltration; and the glass groove seal is located at the edge of the insulated glass assembly to seal the glass installation area.

[0108] The multi-layer closed-loop sealing assembly refers to a continuous sealing structure surrounding the window frame, sash, and glass edges, used for windward exterior windows on high-rise buildings in cold climates. The outer water-blocking seal reduces direct rainwater ingress; the central airtight seal reduces air permeability; the interior insulation seal reduces heat convection loss; and the glass groove seal maintains airtightness at the glass groove. The multi-layer closed-loop sealing assembly separates the water-tight and airtight paths through its layered arrangement of outer water-blocking, central airtightness, and interior insulation. The central airtight seal works in conjunction with the corner airtightness compensation structure and maintains continuous compression at corners. The glass groove seal works in conjunction with the constant-pressure clamping assembly to ensure that the glass edges remain sealed and compressed even with slight displacement.

[0109] Specifically, the outer water-retaining seal is located at the outer overlap of the seamless welded window frame and the seamless welded window sash; the central airtight seal is located in the middle of the frame-sash overlap, near the indoor-outdoor pressure separation point; the indoor thermal insulation seal is located on the inner side of the frame-sash overlap; the glass groove seal includes an outer glass seal and an inner glass seal, located on the outer and inner edges of the insulated glass assembly, respectively. The corner area of ​​the central airtight seal cooperates with the corner airtight compensation structure. Each seal can be installed using snap-fit, embedding, or elastic compression methods to maintain a continuous seal under wind pressure, temperature difference, and opening / closing action.

[0110] In this embodiment, the multi-loop sealing assembly reduces the possibility of external air and rainwater entering the interior through a layered sealing path. When the window is closed, the outer water-blocking seal first blocks rainwater, and any small amount of water entering the outer cavity is discharged by the drainage isolation assembly; the middle airtight seal forms the main air barrier; the interior insulation seal reduces indoor-outdoor convective heat transfer; and the glass groove seal maintains the airtightness of the glass installation area. When the window is subjected to positive pressure from the windward side of a high-rise building, the middle airtight seal undertakes the main differential pressure sealing, and the corner airtight compensation structure maintains its corner compression; when the window is in a low-temperature environment, the constant pressure compression assembly compensates for the compression of the glass groove seal.

[0111] In some embodiments, the outer water-blocking seal, the middle airtight seal, and the inner thermal insulation seal can be made of EPDM rubber, silicone rubber, thermoplastic elastomer, or foamed elastic material; the middle airtight seal is preferably a closed-loop rubber strip, and its corners can be made of an integral vulcanized structure or a hot-melt connection structure. The working compression of the outer water-blocking seal is preferably 5% to 25%, the working compression of the middle airtight seal is preferably 10% to 35%, the working compression of the inner thermal insulation seal is preferably 8% to 30%, and the working compression of the glass groove seal is preferably 8% to 30%, more preferably 12% to 25%. The multi-closed-loop sealing assembly can include two, three, or four frame seals, preferably including at least one outer water-blocking seal, at least one middle airtight seal, and at least one inner thermal insulation seal.

[0112] The multi-loop sealing assembly works synergistically with the seamless welded window frame, seamless welded window sash, corner airtight compensation structure, and drainage isolation assembly: the seamless welded window frame provides the sealing installation boundary, the seamless welded window sash provides the compression fit boundary, the multi-loop sealing assembly forms a full-circumference sealing path, the corner airtight compensation structure maintains continuous corner sealing; the outer water-blocking seal reduces water ingress, the drainage isolation assembly drains water from the outer cavity, the central airtight seal blocks air infiltration, and the indoor thermal insulation seal reduces convective heat loss. Through this synergy, the entire window can simultaneously reduce frame and sash air leakage, corner air leakage, and cold air backflow through the drainage holes.

[0113] The thermally insulated profile assembly forms the main body of the seamless welded window frame and also the main body of the seamless welded window sash. This assembly forms a thermally insulated support relationship with the constant pressure clamping assembly and an installation load-bearing relationship with the corner airtight compensation structure. It is used to reduce thermal bridges in the frame and sash area and to provide a profile foundation for glass installation, frame and sash sealing and corner compensation.

[0114] In this embodiment, the thermal insulation profile assembly includes an outdoor profile section, an indoor profile section, a thermal insulation connection section, a welding adapter section, a sealing mounting section, a clamping component mounting section, and a corner node mounting section. The outdoor profile section is positioned closer to the outdoor side; the indoor profile section is positioned closer to the indoor side; the thermal insulation connection section is located between the outdoor and indoor profile sections; the welding adapter section is located at the end of the profile; the sealing mounting section is located in the frame-sash overlap area; the clamping component mounting section is located in the glass mounting area; and the corner node mounting section is located in the corner connection area of ​​the profile.

[0115] Among them, the thermally insulated profile assembly refers to a frame and sash profile system with thermal break bridges or composite thermal insulation structures, used for exterior windows of buildings in cold climates; the exterior profile section is used to withstand wind and rain; the interior profile section forms the interior installation interface; the thermally insulated connection section blocks heat transfer between the interior and exterior; the welded adapter section forms a closed frame or closed sash; the sealing installation section forms a frame-sash sealing interface; the compression assembly installation section forms the thermally insulated support base for the constant pressure compression assembly; and the corner node installation section forms the corner compensation interface. The thermally insulated profile assembly separates the exterior and interior profile sections through the thermally insulated connection section to reduce direct heat transfer; the compression assembly installation section cooperates with the thermally insulated pressure-bearing section to prevent the constant pressure compression assembly from forming obvious thermal bridges; and the corner node installation section provides positioning space and support interface for the corner airtight compensation structure.

[0116] Specifically, the thermally insulated profile assembly is arranged along the entire window edge: the exterior profile section is located on the exterior side, the interior profile section is located on the interior side, and the thermally insulated connection section is located between the two; the sealing installation section is located on the frame-sash overlap path; the clamping assembly installation section is located on the glass installation space side; the corner node installation section is located at the intersection of adjacent profiles; the welding adapter section is located at the end of the profile and is welded to the end of the adjacent profile. The thermally insulated profile assembly can adopt a thermally broken aluminum structure or an aluminum-plastic composite structure; the exterior profile section and the interior profile section can be connected by thermal insulation strips or composite thermal insulation cavities; the clamping assembly installation section and the constant pressure clamping assembly can be connected by snap-fit ​​or embedded connection; the corner node installation section and the corner airtight compensation structure can be connected by plug-in connection, snap-fit ​​connection, or adhesive connection.

[0117] In this embodiment, the thermally insulated profile assembly blocks the indoor-outdoor heat transfer path through the thermally insulated connection. When the window is in a low-temperature environment, the outdoor profile section bears the outdoor low temperature, while the indoor profile section is closer to the heated space. The thermally insulated connection reduces the heat transfer between the two, thus reducing heat loss in the frame and sash area. The welded adapter section forms a continuous structure at the ends of the profile. The sealing installation section ensures stable installation of the multi-loop sealing assembly. When the window is subjected to wind pressure from the windward side of a high-rise building, the outdoor profile section bears the main external load, the indoor profile section provides internal support, the compression assembly installation section supports the constant pressure compression assembly, and the corner node installation section supports the corner airtight compensation structure, ensuring that both the glass groove compression and the corner airtight compensation have a stable profile foundation.

[0118] In some embodiments, the thermal insulation connection can be a polyamide thermal insulation strip, a polyurethane thermal insulation body, or an aluminum-plastic co-extruded thermal insulation layer; the width of the thermal insulation connection is preferably 14mm~40mm, more preferably 18mm~34mm; if it is lower than this range, the thermal insulation effect is insufficient, and if it is higher than this range, the overall stiffness of the profile decreases. The frame depth of the thermal insulation profile assembly is preferably 65mm~120mm, more preferably 75mm~100mm. The depth of the clamping assembly mounting part is preferably 6mm~20mm, more preferably 8mm~15mm. The outdoor profile part and the indoor profile part can be made of aluminum alloy material, and the indoor profile part can also be made of composite thermal insulation material; the welding adapter part is preferably located in the metal load-bearing area, and a heat-affected zone can be provided between the welding adapter part and the thermal insulation connection part.

[0119] The thermally insulated profile assembly works synergistically with the seamless welded window frame, seamless welded window sash, multi-loop sealing assembly, constant pressure clamping assembly, and corner airtightness compensation structure: the thermally insulated profile assembly provides the thermal load-bearing foundation, the seamless welded window frame and sash provide the closed structure, the multi-loop sealing assembly provides airtight and watertight paths, the clamping assembly mounting section supports the constant pressure clamping assembly, the corner node mounting section supports the corner airtightness compensation structure, and the thermally insulated connection section reduces thermal bridges introduced by the newly added functional structures. Through this synergy, the entire window can reduce heat transfer and air infiltration between the frame and sash, improving the energy efficiency of buildings in cold regions.

[0120] The drainage isolation component is installed at the bottom of the seamless welded window frame or the bottom of the seamless welded window sash. This component forms a drainage isolation relationship with the multi-loop sealing component and a thermal insulation drainage relationship with the thermal insulation profile component. It is used to drain the water in the outer cavity and block the drainage channel from passing through the airtight line to the indoor side, thereby reducing the risk of cold air backflow and heating heat loss from the windward windows of high-rise buildings in cold climates.

[0121] In this embodiment, the drainage isolation component includes an outer water inlet chamber, a central pressure equalization chamber, a concealed drainage channel, an anti-backflow section, an inner airtight isolation section, and a drainage heat insulation section. The outer water inlet chamber is located near the outdoor side to receive small amounts of rainwater or condensate; the central pressure equalization chamber is located inside the outer water inlet chamber to buffer wind pressure; the concealed drainage channel connects the outer water inlet chamber to the outdoor environment; the anti-backflow section is located at the concealed drainage channel to restrict the reverse entry of airflow and water; the inner airtight isolation section is located inside the central pressure equalization chamber to isolate the drainage chamber from the indoor airtight line; and the drainage heat insulation section is located between the drainage path and the indoor profile to reduce cold bridges in the drainage area.

[0122] The drainage isolation component is a structural component used for drainage and isolating the airtight line. The outer water inlet chamber temporarily stores moisture seeping in from the outside; the central isobaric chamber reduces pressure fluctuations at the drainage outlet; the concealed drainage channel directs water outdoors; the backflow prevention section reduces reverse airflow under high-altitude wind pressure through baffles, labyrinth channels, or unidirectional barrier structures; the inner airtight isolation section maintains the indoor airtight boundary; and the drainage insulation section reduces the formation of cold bridges along the drainage path. This drainage isolation component, through its zoned arrangement of outer water inlet, central isobaric chamber, and inner isolation, ensures that the drainage path does not disrupt the main airtight path.

[0123] Specifically, the drainage isolation assembly is located in the lower part of the window: the outer water inlet cavity is located outside or below the outer water-blocking seal; the central pressure equalization cavity is located between the outer water inlet cavity and the inner airtight isolation part; the concealed drainage channel extends from the outer water inlet cavity to the outside; the backflow prevention part is located at or inside the outlet of the concealed drainage channel; the inner airtight isolation part is close to the central airtight seal; and the drainage heat insulation part is located on the indoor side of the drainage cavity. The drainage isolation assembly and the seamless welded window frame can be connected by integral molding, embedded connection, snap-fit ​​connection, or adhesive connection; the backflow prevention part and the concealed drainage channel can be connected by snap-fit ​​connection, elastic connection, or integral molding connection; the inner airtight isolation part and the multi-closed-loop sealing assembly preferably form an adjacent sealing fit.

[0124] In this embodiment, the drainage isolation component directs moisture entering the outer cavity to the outside for discharge, while simultaneously blocking the connection between the drainage cavity and the indoor side through the inner airtight isolation section. When the window is exposed to rain, the outer water inlet cavity receives a small amount of seeping water, conceals the drainage channel to discharge the water outdoors, the central isobaric cavity reduces the impact of external wind pressure on drainage, and the anti-backflow section reduces the reverse entry of external cold air and rainwater. When the window is on a high-rise windward side, the anti-backflow section restricts airflow backflow, the central isobaric cavity buffers pressure difference changes, and the inner airtight isolation section maintains the continuity of the indoor airtight line. When the window is in a low-temperature environment, the drainage and heat insulation section reduces heat transfer from the drainage area to the indoor side. Thus, the drainage isolation component can simultaneously meet the requirements of drainage, watertightness, airtightness, and heat insulation.

[0125] In some embodiments, the concealed drainage channel can be an inclined channel, a stepped channel, or a bent channel; its minimum width is preferably 3mm to 12mm, more preferably 5mm to 8mm; the drainage slope is preferably 2° to 10°, more preferably 3° to 6°. The backflow prevention part can be an elastic baffle, a labyrinth baffle, or a one-way drainage component, and its opening gap is preferably 0.5mm to 5mm, more preferably 1mm to 3mm. The height of the central equal pressure chamber is preferably 5mm to 25mm, more preferably 8mm to 18mm. The inner airtight isolation part can be an isolation wall, an isolation rib, or a combination of an isolation wall and a sealing component; the drainage heat insulation part can be a cavity heat insulation structure, a heat insulation strip, or a heat insulation pad, and can be integrally formed with the heat insulation profile assembly, or embedded in the profile as an independent heat insulation component.

[0126] The drainage isolation component works synergistically with the multi-loop sealing component, thermal insulation profile component, and corner airtight compensation structure: the outer water-blocking seal reduces water inflow, the drainage isolation component drains accumulated water from the outside, the central airtight seal blocks air infiltration, and the indoor thermal insulation seal reduces convective heat loss; the thermal insulation profile component provides the foundation for the drainage cavity, the drainage insulation section reduces thermal bridges in the drainage path, and the inner airtight isolation section maintains the indoor airtight boundary; the corner airtight compensation structure maintains continuous corner airtightness, and the drainage isolation component handles accumulated water on the lower outside. Through this synergy, the entire window can avoid the corners and lower frame areas becoming weak points for air and water leakage, improving the long-term reliability of windward exterior windows on high-rise buildings in cold climates.

[0127] In this embodiment, the drainage isolation component solves the problem of interference between the drainage path and the airtight path through an outer water inlet chamber, a central isobaric chamber, a concealed drainage channel, an anti-backflow section, and an inner airtight isolation section. During implementation, the exterior window needs drainage but cannot create a cold air passageway; therefore, this embodiment adopts a structure combining isobaric buffering, anti-backflow, and inner isolation, enabling the drainage isolation component to provide drainage assurance for the overall watertightness, airtightness stability, and building energy efficiency of the exterior window on the windward side of a high-rise building in cold climates.

[0128] Example 3:

[0129] This embodiment further defines the constant pressure clamping component based on embodiment 2.

[0130] The constant pressure clamping assembly is installed within the floating glass mounting structure and directly participates in the airtight clamping of the glass groove. The constant pressure clamping assembly is located on one side of the edge of the heat-insulating glass assembly and acts on the glass groove seal. In this embodiment, the constant pressure clamping assembly includes a floating pressure line body, a heat-insulating pressure-bearing part, and an elastic pre-tightening part. The floating pressure line body is used to clamp the glass groove seal, the heat-insulating pressure-bearing part is used to block the heat transfer of the pre-tightening path, and the elastic pre-tightening part is used to compensate for changes in seal compression.

[0131] In this embodiment, the constant pressure clamping component does not simply fix the glass. Through the cooperation of the floating pressure line body, the heat insulation pressure bearing part, and the elastic pre-tightening part, the heat insulation glass component forms a restricted floating and continuously clamped state in the cold climate high-rise windward conditions. When the indoor and outdoor temperature difference changes, the edge of the heat insulation glass component will produce a slight displacement. The floating pressure line body first elastically clamps the glass groove seal, and the elastic pre-tightening part then compensates for the change in the compression of the seal. The heat insulation pressure bearing part further blocks the pre-tightening part from forming a thermal bridge, thereby forming a continuous technical action chain.

[0132] Compared with the prior art, the constant pressure clamping assembly of this embodiment has at least the following differences: First, the clamping method is elastic compensation clamping, rather than fixed pressure line clamping; Second, the pre-tightening path is provided with a heat-insulating pressure-bearing part to avoid the formation of obvious thermal bridges; Third, the clamping assembly cooperates with the floating glass mounting structure to allow restricted micro-movement of the glass edge. The above differences enable the constant pressure clamping assembly to improve the airtightness stability of the glass groove without relying on increasing the pressure of the pressure line.

[0133] In a further embodiment, the constant pressure clamping assembly also includes a compression limiting part, which is disposed on the movement path of the floating pressure line body. The compression limiting part is used to limit the maximum compression amount, thereby preventing the glass groove seal from being over-compressed. The constant pressure clamping assembly may also include a sliding buffer part, which is disposed between the floating pressure line body and the glass groove seal. The sliding buffer part is used to reduce edge fretting friction. This structure is used to reduce stress concentration in the glass edge sealing area.

[0134] In high-rise buildings in cold climates, seals are prone to hardening at low temperatures, and ordinary rigid pressure lines are difficult to compensate for compression attenuation. If the pressure of the pressure line is directly increased, the stress on the glass edge will increase. In this embodiment, the elastic pre-tightening part provides compensation force, the floating pressure line body distributes the compensation force, and the heat-insulating pressure-bearing part blocks heat transfer. As a result, the glass groove can still maintain a stable sealing state under low temperature, wind pressure and opening and closing action.

[0135] The constant pressure clamping assembly is coupled with the floating glass mounting structure. The floating glass mounting structure provides a confined displacement space, while the constant pressure clamping assembly provides a continuous clamping force. When the insulated glass assembly undergoes slight movement within the confined space, the constant pressure clamping assembly synchronously compensates for the changes in sealing compression. The constant pressure clamping assembly is also coupled with the corner airtightness compensation structure. The elastic clamping force at the straight edge is continuously transferred through the corner airtightness compensation structure, thus ensuring that the straight edge seal and the corner seal of the glass remain consistent.

[0136] The constant pressure clamping assembly in this embodiment solves the conflict between the slight movement of the glass edge and the continuous clamping of the groove by combining elastic pre-tightening, thermal insulation support and floating pressure line. The main difficulty in implementation is that the pre-tightening structure needs to compensate for changes in sealing without increasing thermal bridges. Therefore, this embodiment adopts a thermal insulation pressure-bearing part and a distributed elastic pre-tightening part, so that the constant pressure clamping assembly can improve the airtightness stability of the windward exterior windows in high-rise buildings in cold climates and serve the purpose of building energy conservation.

[0137] This embodiment further defines the corner airtightness compensation structure based on embodiment 2.

[0138] The corner airtight compensation structure is set at the corner of the seamless welded window sash and directly participates in the formation of the corner airtight closed loop. The corner airtight compensation structure is located at the intersection area of ​​two adjacent straight edges and cooperates with the end of the constant pressure clamping component. In this embodiment, the corner airtight compensation structure includes a corner airtight reinforcement, an elastic sealing part, and a corner positioning part. The corner airtight reinforcement is used to support the straight edge clamping structure, the elastic sealing part is used to compensate for changes in corner sealing, and the corner positioning part is used to position the corner of the sealing part.

[0139] In this embodiment, the function of the corner airtight compensation structure is not simply to strengthen the corner of the window sash. Through the cooperation of the corner airtight reinforcement, the elastic sealing part and the corner positioning part, the compression relationship of adjacent straight edges is made to form a continuous transition at the corner of the window sash. When the wind pressure on the windward side of the high-rise changes, the constant pressure compression component first compensates for the compression amount at the straight edge. The corner airtight reinforcement then takes over the action of the end of the pressure line, the elastic sealing part further absorbs the local compression change, and the corner positioning part constrains the corner position of the sealing part, thereby forming a corner airtight action chain.

[0140] Compared with existing technologies, the corner airtightness compensation structure of this embodiment has at least the following differences: First, the corner structure supports the constant pressure compression relationship of the straight edge; second, the corner structure compensates for compression changes through an elastic sealing part; third, the corner structure simultaneously positions the glass seal and the main frame and sash seal. These differences enable the corner airtightness compensation structure to improve the continuity of corner sealing without relying solely on corner adhesive injection.

[0141] In a further embodiment, the corner airtight reinforcement is provided with a pressure wire end receiving part, which cooperates with the end of the floating pressure wire body. The pressure wire end receiving part is used to limit the displacement of the pressure wire end. The corner airtight reinforcement is also provided with an adhesive guiding part, which is used to guide the sealing material into the corner cavity. The elastic sealing part is filled in the adhesive guiding part. The corner positioning part includes a glass sealant corner positioning part and a main sealing corner positioning part.

[0142] In high-rise buildings in cold climates, corner areas are simultaneously subjected to temperature differences, wind pressure, and opening / closing loads. Although ordinary seamless welded corners are continuous, gaps may still form at the ends of the pressure lines, and ordinary rubber strips may also experience insufficient compression at corners. In this embodiment, an airtight corner reinforcement bears the straight edge clamping force, an elastic sealing part compensates for local compression changes, and a corner positioning part maintains the corner position of the rubber strip. Thus, the corner area can maintain an airtight and continuous state.

[0143] The corner airtight compensation structure is coupled with the constant pressure clamping assembly. The constant pressure clamping assembly provides continuous clamping at the straight edge, and the corner airtight compensation structure supports this clamping relationship at the corner. Together, they prevent air leakage at the end of the pressure line. The corner airtight compensation structure is also coupled with the multi-loop sealing assembly. The multi-loop sealing assembly provides a full circumferential sealing path, and the corner airtight compensation structure maintains continuous corner compression. Thus, the frame and sash airtight lines and the glass groove airtight lines form a related closed loop at the corner.

[0144] The corner airtightness compensation structure in this embodiment solves the problem of discontinuous corner sealing through corner support, elastic filling, and corner positioning. The main difficulty in its implementation lies in the fact that the corner needs to bear the compression of two straight edges while avoiding the formation of thermal bridges and leakage points. To this end, this embodiment uses a corner airtightness reinforcement with a positionable seal and an elastic seal, so that the corner airtightness compensation structure can improve long-term airtightness and reduce building heating energy consumption in the windward exterior windows of high-rise buildings in cold climates.

[0145] Example 4:

[0146] This embodiment describes the working process of a high-airtightness, energy-saving window system based on seamless welding technology.

[0147] When the energy-saving window is in the initial closed state, the seamless welded window frame remains fixed, the seamless welded window sash is in the closed and pressed state, the heat-insulating glass assembly is located in the floating glass installation structure, the constant pressure clamping assembly and the glass groove seal form an initial clamping relationship, the corner airtight compensation structure and the end of the constant pressure clamping assembly form a transition fit, the multi-loop sealing assembly forms a layered sealing state between the frame and the sash, and the drainage isolation assembly is in an external drainage and internal airtight isolation state.

[0148] When the energy-saving window is subjected to the temperature difference between indoors and outdoors, the heat-insulating glass component will produce a slight displacement at the edge. The floating glass installation structure first provides the restricted displacement space, and the constant pressure clamping component then compensates for the compression change of the glass groove seal. The heat-insulating pressure-bearing part restricts the heat transfer along the clamping path, and the corner airtight compensation structure further supports the straight edge clamping change. As a result, the glass edge can release thermal deformation, and the glass groove still maintains an airtight clamping state.

[0149] When the energy-saving window is subjected to wind pressure from the windward side of a high-rise building, the heat-insulating glass assembly undergoes localized stress deformation. The floating glass installation structure restricts the lateral displacement of the glass, the constant pressure clamping assembly continuously applies pressure to the glass groove seal, the sliding buffer reduces edge friction resistance, the compression limiting part restricts excessive compression, and the corner airtight compensation structure supports the end of the pressure line. As a result, the localized deformation caused by wind pressure is less likely to cause air leakage at the groove.

[0150] When energy-saving windows are in a low-temperature environment, the elasticity of the glass groove seal may decrease. The elastic pre-tightening part compensates for the compression attenuation, the floating pressure line body maintains the sealing and pressing surface, the heat insulation and pressure bearing part reduces the additional thermal bridge, the multi-closed-loop sealing components maintain the main airtight line of the frame and sash, and the indoor side insulation seal reduces the infiltration of cold air. As a result, energy-saving windows can reduce the loss of heating heat.

[0151] When rainwater enters the outer cavity, the outer water-blocking seal first blocks it, and a small amount of water enters the outer water inlet cavity. The hidden drainage channel directs the water to the outside. The middle equal pressure cavity buffers the external wind pressure, the anti-backflow part restricts the reverse entry of cold air, and the inner airtight isolation part blocks the drainage channel. Thus, the drainage process will not damage the indoor airtight line.

[0152] When the energy-saving window is opened and closed, the seamless welded window sash moves relative to the seamless welded window frame. The overlapping part of the frame and sash gradually compresses the multiple closed-loop sealing components. The constant pressure pressing component keeps the glass groove pressed. The corner airtight compensation structure maintains the sealing corner positioning. The opening and closing load is transmitted through the seamless welded window sash. The corner welded connection maintains the integrity of the window sash. Therefore, it can maintain a stable seal even after long-term opening and closing.

[0153] In this process, the key components are: the effect of temperature difference in cold climate causes slight displacement of the glass edge; floating glass installation structure provides limited displacement space; constant pressure clamping component compensates for changes in sealing compression; corner airtightness compensation structure maintains continuous corner transition; multi-loop sealing component forms a full-circumference airtight path; drainage isolation component maintains drainage and airtightness separation; ultimately achieving airtightness stability and thermal insulation energy saving.

[0154] Another key link in the chain is that the wind pressure on the windward side of the high-rise building causes local deformation of the glass and window sash; the seamless welded window frame and seamless welded window sash provide a rigid load-bearing foundation; the constant pressure clamping component maintains the tightness of the glass groove; the corner airtight compensation structure prevents air leakage at the end of the pressure line; the central airtight seal blocks air infiltration; and finally reduces heat loss from wind seepage through the exterior window.

[0155] Through the above-described process, a high-airtightness, energy-saving window system based on seamless welding technology can maintain restricted movement of the glass edges, continuous compression of the glass groove, continuous airtightness at the corners, and independent drainage paths under conditions of cold climate, high-rise wind pressure, rain, and long-term opening and closing. Therefore, this energy-saving window can reduce air infiltration, minimize the impact of thermal bridging between the frame and the window, and improve the building's heating energy efficiency.

[0156] Based on the preferred embodiments of the present invention described above, those skilled in the art can make various changes and modifications without departing from the inventive concept. The technical scope of this invention is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A high-airtightness, energy-saving window system based on seamless welding technology, characterized in that: include: Seamless welded window frames are used to form the external load-bearing structure and installation benchmark for the entire window; A seamless welded window sash is installed inside the seamless welded window frame to support the glass and to form an opening and closing fit with the seamless welded window frame; A heat-insulating glass assembly is installed inside the seamless welded window sash to reduce heat loss in the transparent area of ​​the window. A floating glass mounting structure is disposed between the seamless welded window sash and the thermally insulated glass assembly to support and limit the thermally insulated glass assembly and allow limited displacement of the edges of the thermally insulated glass assembly. A heat-insulating constant-pressure floating pressure line assembly is provided along the straight edge of the heat-insulating glass assembly and acts on the sealing area of ​​the glass groove through a heat-insulating support to provide a continuous elastic clamping force to the heat-insulating glass assembly. A corner constant pressure airtightness compensation node is set in the corner area of ​​the seamless welded window sash and cooperates with the ends of the thermal insulation constant pressure floating pressure line assembly on the two adjacent straight edges to form a pressure transition and airtightness compensation at the corner of the window sash. A multi-loop sealing assembly is disposed between the seamless welded window frame and the seamless welded window sash, and between the thermally insulated glass assembly and the seamless welded window sash, to form an airtight seal between the frame and the sash and an airtight seal between the glass groove. And a drainage isolation component, which is disposed in the lower area of ​​the seamless welded window frame or the seamless welded window sash, for draining moisture from the outer cavity and isolating the drainage channel from the indoor airtight line; The floating glass installation structure, the heat-insulating constant pressure floating pressure line assembly, and the corner constant pressure airtight compensation node work together to ensure that the heat-insulating glass assembly maintains continuous pressure on the glass groove even when the edge heat deformation is released, and to form an airtight closed loop at the corner of the seamless welded window sash by pressing the straight edge together.

2. The high airtightness, energy-saving window system based on seamless welding technology according to claim 1, characterized in that: The thermally insulated constant-pressure floating pressure line assembly includes a floating pressure line body, a thermally insulated pressure-bearing part, and an elastic pre-tightening part. The floating pressure line body is disposed opposite to the glass groove sealing area. The thermally insulated pressure-bearing part is disposed between the floating pressure line body and the seamless welded window sash. The elastic pre-tightening part is disposed between the thermally insulated pressure-bearing part and the floating pressure line body to provide compensating pre-tightening force to the floating pressure line body when the compression of the glass groove seal changes.

3. The high airtightness, energy-saving window system based on seamless welding technology according to claim 2, characterized in that: The heat-insulating constant pressure floating pressure line assembly further includes a compression limiting part and a sliding buffer part. The compression limiting part is disposed on the movement path of the floating pressure line body to limit the maximum compression of the glass groove seal. The sliding buffer part is disposed between the floating pressure line body and the glass groove seal to reduce frictional resistance and shearing action when a slight displacement occurs at the edge of the heat-insulating glass assembly.

4. The high airtightness, energy-saving window system based on seamless welding technology according to claim 2, characterized in that: The elastic pre-tightening part is an elastic strip, wave elastic sheet or elastic block that is continuously or intermittently arranged. The pre-tightening direction of the elastic pre-tightening part is towards the sealing area of ​​the glass groove, and the elastic pre-tightening part forms a thermal insulation support relationship with the seamless welded window sash through the thermal insulation and pressure bearing part.

5. The high airtightness, energy-saving window system based on seamless welding technology according to claim 1, characterized in that: The corner constant pressure airtight compensation node includes a corner airtight reinforcement, an elastic sealing part, a pressure line end receiving part, and a corner positioning part. The pressure line end receiving part is disposed on adjacent sides of the corner airtight reinforcement and respectively cooperates with the ends of the heat-insulating constant pressure floating pressure line assembly on the two adjacent straight sides. The elastic sealing part is disposed inside the corner airtight reinforcement. The corner positioning part is used to position the corner of the glass groove seal and / or the corner of the frame and sash main airtight seal.

6. The high airtightness, energy-saving window system based on seamless welding technology according to claim 1, characterized in that: The corner airtight reinforcement is provided with an adhesive guiding part, which is an adhesive guiding groove, an adhesive guiding hole or a combination thereof. The elastic sealing part is filled in the adhesive guiding part and forms an elastically recoverable corner seal. The end receiving part of the pressure line is a plug groove, an abutment step or a limiting cavity, and forms a compensation gap with the end of the heat-insulated constant pressure floating pressure line assembly.

7. The high airtightness, energy-saving window system based on seamless welding technology according to claim 1, characterized in that: The floating glass mounting structure includes a support part, a limiting part, a sealing mounting part, a buffer gap part, and a pressing guide part. The support part is used to support the heat-insulating glass assembly, the limiting part is used to limit the lateral displacement of the heat-insulating glass assembly, the sealing mounting part is used to install the glass groove seal, the buffer gap part is used to accommodate the slight displacement of the edge of the heat-insulating glass assembly, and the pressing guide part is used to guide the pressing direction of the heat-insulating constant pressure floating pressure line assembly.

8. The high airtightness, energy-saving window system based on seamless welding technology according to claim 1, characterized in that: The multi-loop sealing assembly includes an outer water-blocking seal, a middle airtight seal, an inner-side thermal insulation seal, and a glass groove seal. The outer water-blocking seal is located at the outer overlap of the frame and sash, the middle airtight seal is located at the middle of the frame and sash overlap and forms the main airtight line, the inner-side thermal insulation seal is located on the inner side of the frame and sash, and the glass groove seal is located at the edge of the thermally insulated glass assembly. The corner portion of at least one of the middle airtight seal and the glass groove seal mates with the corner constant pressure airtight compensation node.

9. A high-airtightness, energy-saving window system based on seamless welding technology according to claim 1, characterized in that: The drainage isolation assembly includes an outer water inlet chamber, a middle isobaric chamber, a hidden drainage channel, an anti-backflow section, an inner airtight isolation section, and a drainage heat insulation section. The hidden drainage channel connects the outer water inlet chamber with the outdoor environment. The anti-backflow section is located at the hidden drainage channel. The inner airtight isolation section is located at the inner side of the middle isobaric chamber near the interior to block the airflow communication between the hidden drainage channel and the indoor airtight line.

10. A high-airtightness, energy-saving window system based on seamless welding technology according to claim 1, characterized in that: Both the seamless welded window frame and the seamless welded window sash are connected end to end by thermally insulated profile components and seamlessly welded at the corners to form a closed structure. The thermally insulated profile components include an outdoor profile section, an indoor profile section, a thermally insulated connection section disposed between the outdoor profile section and the indoor profile section, a pressure line mounting section for installing the thermally insulated constant pressure floating pressure line component, and a corner node mounting section for installing the corner constant pressure airtightness compensation node.

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