Ultralow-energy-consumption unit curtain wall node
By designing channels surrounded by upper and lower beams in the curtain wall nodes of the unit body, filling them with hard bubble polyurethane and using sealant strips to isolate them, the problems of water leakage and heat conduction of conventional curtain walls of the unit body are solved, and the effect of ultra-low energy consumption is achieved.
Patent Information
- Application Number
- CN202510271252.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2025-04-18
AI Technical Summary
The conventional unit body curtain wall uses a strip-type thermal insulation profile to cause water leakage and air leakage and the inability to effectively prevent the heat conduction inside and outside the aluminum profile.
A curtain wall node of an ultra-low energy consumption unit is designed, using a channel surrounded by upper beams and lower beams. The channel is filled with hard bubble polyurethane and is isolated from the outside through a sealing strip to avoid contact with the outside and reduce heat transfer efficiency.
It effectively avoids the aging and degradation of the thermal insulation performance of hard foam polyurethane, prevents water and air leakage in the channel, and significantly reduces the heat conduction inside and outside the aluminum profile, achieving an ultra-low energy consumption effect.
Smart Images
Figure CN119843806A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of curtain walls, and in particular to an ultra-low energy consumption unit curtain wall node. Background Art
[0002] Unit curtain wall refers to a building curtain wall that is made of various wall panels and supporting frames in the factory to form a complete curtain wall structure basic unit, and is directly installed on the main structure. Compared with traditional frame curtain walls, unit curtain walls are all processed and assembled in the factory. Only hoisting is required on site. The unit components are directly fixed on the main structure. It is no longer necessary to install components one by one to form a frame and then install glass. Such a structure has the following advantages: ① Short construction period on site; ② Since the joints of the unit components are formed by plugging, it has a particularly good adaptability to deformation caused by temperature changes, etc., and has low noise during displacement. ③ The production and assembly of the unit components are completed in the factory, so the quality control conditions are better than those on site, and the internal quality of the unit components is better than that assembled on site, thereby improving the overall quality of the curtain wall.
[0003] Conventional unit curtain walls use strip-type insulation profiles, which are made of two insulation strips that connect the inner and outer parts of the aluminum profile, thereby preventing the conduction of heat inside and outside the aluminum profile and achieving the purpose of energy saving. Of the two insulation strips of the strip-type insulation profile, the outer insulation strip is prone to aging due to contact with the outside air and rain. After aging, the insulation performance and sealing performance of the insulation strip are reduced, not only there are problems of water leakage and air leakage, but also it cannot effectively prevent the conduction of heat inside and outside the aluminum profile. Summary of the invention
[0004] In view of this, the present invention provides an ultra-low energy consumption unit curtain wall node, aiming to solve the problems of water leakage and air leakage caused by the use of through-strip insulation profiles in conventional unit curtain walls and the inability to effectively prevent heat conduction inside and outside the aluminum profile.
[0005] To solve the above problems, the ultra-low energy consumption unit curtain wall node provided by the present invention comprises adjacent upper beams and lower beams, and hollow glass is installed at the opposite ends of the upper beams and the lower beams, and through openings are provided at the side end surfaces of the upper beams and the lower beams facing the hollow glass, and the through openings are filled with rigid foam polyurethane, and the upper beams and the lower beams are locally plug-fitted on the inner side of the hollow glass, and a first sealing strip is pressed in the fitting gap, and the facing surfaces of the upper beams and the lower beams form a first channel and a second channel separated by the plug-fitting part, and the first channel is closer to the hollow glass than the second channel, and the first sealing strip extends into the first channel, and a second sealing strip and a third sealing strip are provided in the first channel for pressing the first sealing strip and sealing the first channel, and the rigid foam polyurethane is located between the second sealing strip and the third sealing strip.
[0006] Optionally, a slot is provided on the upper crossbeam, an insertion strip is provided on the lower crossbeam, a first water filter sponge is provided in the slot, the insertion strip is inserted into the slot and presses the first sealing strip onto the first water filter sponge.
[0007] Optionally, a second water filter sponge is sealed at one end of the second channel away from the insulating glass.
[0008] Optionally, an edge is provided at one end of the lower cross beam located inside the insulating glass, and an extension portion is provided on the second water filter sponge, and the extension portion is pressed by the edge to an end face of one end of the upper cross beam located inside the insulating glass.
[0009] Optionally, a fourth sealing strip is pressed between the edge and an end surface of the upper cross beam located on the inner side of the insulating glass.
[0010] Optionally, a sealing plate is laid in the second channel, and the sealing plate forms a drainage ditch for receiving water leaking from the gap between the upper beam and the lower beam.
[0011] Optionally, a plurality of cavities are provided in the lower cross beam, the drainage groove is connected to the cavity via a through hole, the lowest cavity is provided with a drainage hole, and a water-proof and heat-insulating layer is attached to the inner wall of the cavity.
[0012] Optionally, the upper crossbeam and the lower crossbeam are both detachably connected with buckle covers, the buckle covers are buckled on the outer side of the insulating glass, a fifth sealing strip is pressed between the buckle cover and the outer side of the insulating glass, and the fifth sealing strip extends along the circumference of the insulating glass to fully cover it.
[0013] Optionally, the first channel is connected to the outside, the first sealing strip extends along the lower cross beam to the connection between the first channel and the outside, and the upper surface of the first sealing strip that is close to the lower cross beam has a slope suitable for draining water to the connection.
[0014] Optionally, PE foam is provided between the rigid polyurethane foam and the end of the insulating glass.
[0015] Compared with the prior art, the technical solution of the present invention has the following advantages:
[0016] 1. In the first channel surrounded by the upper crossbeam and the lower crossbeam, a sealing strip is used to isolate the composite of the aluminum alloy profile and the rigid foam polyurethane from the outside world. The sealing strip on the outside of the rigid foam polyurethane can effectively prevent the rigid foam polyurethane from contacting with the outside air and rainwater, thereby delaying the aging of the rigid foam polyurethane and preventing the thermal insulation performance of the rigid foam polyurethane from decreasing. The rigid foam polyurethane is formed into an integral part with the crossbeam (aluminum alloy profile) by pouring and filling it, thereby preventing the hollow glass from directly contacting the crossbeam (aluminum alloy profile) and reducing the heat transfer efficiency, thereby achieving the effect of reducing energy consumption. The sealing strips on both sides of the rigid foam polyurethane can prevent water and air leakage in the first channel, and the second channel surrounded by the upper crossbeam and the lower crossbeam can be used to isolate the rigid foam polyurethane from the wall (or indoors), further enhancing the effect of preventing water and air leakage and preventing heat conduction inside and outside the aluminum profile.
[0017] 2. The channel surrounded by the upper beam and the lower beam is separated into a first channel and a second channel by a concave and convex plug-in structure. A sealing strip is set in the first channel for sealing, and a sealing strip is also set at the plug-in joint to achieve sealing. A water filter sponge is set in the second channel to absorb water and a leakage hole is set to drain water in time. In addition to the function of leaking water and air, this combined design can also isolate the indoor and outdoor environment, reduce indoor and outdoor air circulation and heat transfer, and further reduce energy consumption, thereby achieving an ultra-low energy consumption effect.
[0018] 3. The upper and lower beams are pressed against the outer side of the insulating glass with continuous and fully wrapped sealing strips on the outdoor side, so that the unit curtain wall system has higher wind pressure resistance, air tightness, water tightness, sound insulation and heat insulation thermal properties.
[0019] 4. An aluminum alloy sealing plate is laid in the second channel as a drainage trough to prevent water leaking into the second channel from directly contacting the lower beam and causing corrosion, thereby affecting the structural strength of the lower beam.
[0020] 5. By designing the cavity in the lower cross beam to be connected with the drainage trough, the accumulated water can be discharged in time to avoid water leakage caused by the drainage trough being filled with water.
[0021] 6. By arranging water filter sponges at both ends of the second channel, the amount of water leakage from the first channel into the second channel and the amount of water leakage from the second channel into the room can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.
[0023] Figure 1It is a structural cross-sectional view of an ultra-low energy consumption unit curtain wall node in an embodiment of the present invention.
[0024] In the figure: upper crossbeam 1, slot 11, lower crossbeam 2, insert 21, edging 22, cavity 23, limit claw 231, hollow glass 3, through port 4, rigid polyurethane foam 5, first sealing strip 61, convex piece 611, second sealing strip 62, third sealing strip 63, fourth sealing strip 64, fifth sealing strip 65, first channel 71, second channel 72, first water filter sponge 81, second water filter sponge 82, extension 821, sealing plate 9, water-proof and heat-insulating layer 10, buckle cover 12, PE foam 13, aluminum alloy support strip 14. DETAILED DESCRIPTION
[0025] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the description of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0026] Unless otherwise clearly specified and limited, the terms "disposed", "installed", "connected" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.
[0027] The directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front”, “back”, “top”, “bottom”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.
[0028] The terms "first", "second", "third" and the like are merely used to distinguish elements of similar nature, and do not indicate or imply relative importance or a particular order.
[0029] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of the elements listed and may also include additional elements not expressly listed.
[0030] Please refer to Figure 1The present invention provides an ultra-low energy consumption unit curtain wall node, comprising an upper beam 1 and a lower beam 2 adjacent to each other, preferably an aluminum alloy profile as the upper beam 1 and the lower beam 2. The upper beam 1 is located above the lower beam 2, and a hollow glass 3 is installed on the side of the upper beam 1 facing away from the lower beam 2, and a hollow glass 3 is also installed on the side of the lower beam 2 facing away from the upper beam 1, and the hollow glass 3 is preferably a tempered laminated hollow glass.
[0031] The upper crossbeam 1 and the lower crossbeam 2 are both provided with a through opening 4, which is in a strip shape, similar in shape to the side end (specifically the bottom end or the top end) end face of the insulating glass 3, and directly faces the side end face of the insulating glass 3. A rigid foam polyurethane 5 is integrally formed in the through opening 4 by a pouring filling process, and the upper and lower sides of the rigid foam polyurethane 5 are flush with the mouth of the through opening 4. Screws passing through the rigid foam polyurethane 5 can also be horizontally arranged in the through opening 4 to fix the position of the rigid foam polyurethane 5.
[0032] Part of the upper crossbeam 1 is plugged in with part of the lower crossbeam 2, and the plugged parts of the two are located inside the insulating glass 3, and the first sealing strip 61 is pressed in the matching gap. The lower surface of the upper crossbeam 1 and the upper surface of the lower crossbeam 2 form a horizontal channel, and the channel is divided into two by the plug-in fitting, forming a first channel 71 and a second channel 72, wherein the first channel 71 is closer to the insulating glass 3 than the second channel 72. The first sealing strip 61 is in the shape of a long strip, and one end of the first sealing strip 61 in the length direction is pressed at the plug-in fitting, and the rest of the first sealing strip 61 extends into the first channel 71 and is laid flat along the upper surface of the lower crossbeam 2. Preferably, a card strip protrudes from the lower surface of the first sealing strip 61 located in the first channel 71, and the upper surface of the lower crossbeam 2 has a concave card slot, and the card strip is stuck in the card slot.
[0033] The first channel 71 is also provided with a second sealing strip 62 and a third sealing strip 63 for blocking the first channel 71, and the second sealing strip 62 and the third sealing strip 63 are respectively located on both sides of the rigid polyurethane foam 5. The second sealing strip 62 and the third sealing strip 63 are both pressed against the upper cross beam 1 at the top and pressed against the upper surface of the first sealing strip 61 at the bottom. Preferably, the tops of the second sealing strip 62 and the third sealing strip 63 are protruding with a card strip, and the lower surface of the upper cross beam 1 has a concave card groove, and the card strip is stuck in the card groove. Preferably, the first sealing strip 61, the second sealing strip 62 and the third sealing strip 63 are all made of EPDM sealing strips. The structures of the second sealing strip 62 and the third sealing strip 63 are three parts integrally formed from top to bottom: a connecting portion, a hollow portion, and abutting portion; the connecting portion is the clamping strip, the hollow portion is a circle, an ellipse, a triangle, a square, etc. with a hollow interior, and the abutting portion is at least two legs extending from the bottom of the hollow portion, each leg is pressed against the upper surface of the first sealing strip 61, and the sealing surface formed by each leg and the first sealing strip 61 is a sealing barrier.
[0034] Specifically, a concave slot 11 is provided on the lower surface of the upper crossbeam 1 on the inner side of the insulating glass 3 (i.e., the side of the insulating glass 3 facing the room), and an upwardly convex insertion strip 21 is provided on the upper surface of the lower crossbeam 2 at a corresponding position. The bottom of the slot 11 is filled with a first water filter sponge 81, and the insertion strip 21 is inserted into the slot 11 and presses the first sealing strip 61 on the first water filter sponge 81; the first sealing strip 61 has a plurality of convex pieces 611 on the surface facing the inner wall of the slot 11, and the convex pieces 611 press the surface of the upper crossbeam 1, and each convex piece 611 is a barrier to prevent water and air leakage; a card slot is provided on the top of the insertion strip 21, and a downwardly convex card strip is provided on the first sealing strip 61, and the card strip is stuck in the card slot.
[0035] Furthermore, an end of the second channel 72 away from the insulating glass 3 is sealed with a second water filtering sponge 82; an end of the lower crossbeam 2 located on the inner side of the insulating glass 3 is provided with an edge 22, and an extension portion 821 is protruded from the upper right corner of the second water filtering sponge 82, and the edge 22 presses the extension portion 821 onto an end surface of the upper crossbeam 1 located on the inner side of the insulating glass 3; a fourth sealing strip 64 is pressed between the edge 22 and the end surface of the upper crossbeam 1 located on the inner side of the insulating glass 3, and the fourth sealing strip 64 is located above the extension portion 821 of the second water filtering sponge 82, and the fourth sealing strip 64 is also preferably made of EPDM sealing strip.
[0036] Furthermore, a sealing plate 9 is also laid in the second channel 72, preferably an aluminum alloy sealing plate 9, the sealing plate 9 is laid against the bottom wall and side wall of the second channel 72, the inner wall of the sealing plate 9 forms a drainage groove, the drainage groove is used to receive the water leaking into the second channel 72 from the plug-in matching gap between the upper crossbeam 1 and the lower crossbeam 2; the sealing plate 9 has holes on the groove wall of the drainage groove for drainage; a plurality of cavities 23 are provided in the lower crossbeam 2, the partitions between the side wall of the second channel 72 and the cavity 23 and the partitions between adjacent cavities 23 are all provided with through holes, the through holes allow the water in the drainage groove to flow into the cavity 23, the bottom of the lowest cavity 23 is provided with a drainage hole, the water in the drainage groove flows through the plurality of cavities 23, and the drainage hole is provided at the bottom of the lowest cavity 23. After passing through each cavity 23, the water enters the lowest cavity 23 and is discharged from the cavity 23 through the drainage hole to the lower cross beam 2; a water-proof and heat-insulating layer 10 is attached to the inner wall of the cavity 23, such as a hard foam layer or a polyurethane layer formed by a foaming material, the water-proof and heat-insulating layer 10 can prevent water from corroding the inner wall of the profile, and the water inlet and outlet holes of the cavity 23 both penetrate the water-proof and heat-insulating layer 10; a Y-shaped limiting claw 231 is also integrally formed on the inner wall of the cavity 23, and the water-proof and heat-insulating layer 10 wraps the limiting claw 231 and fills the inside of the limiting claw 231, so that the water-proof and heat-insulating layer 10 is connected to the limiting claw 231 as a whole, so that the water-proof and heat-insulating layer 10 cannot move relative to the lower cross beam 2.
[0037] Furthermore, the first channel 71 is communicated with the outside world, and the first sealing strip 61 extends along the lower cross beam 2 to the communication opening between the first channel 71 and the outside world. The upper surface of the first sealing strip 61 that is close to the lower cross beam 2 has a slope, and the portion of the first sealing strip located in the first channel 71 is lower as it is closer to the outside world, which is suitable for drainage to the communication opening. Even if rainwater enters the first channel 71 from the communication opening, it is difficult for the rainwater to flow upward along the inclined upper surface of the first sealing strip into the depths of the first channel 71.
[0038] Furthermore, the upper crossbeam 1 and the lower crossbeam 2 are both detachably connected with a buckle cover 12, and the upper crossbeam 1 and the lower crossbeam 2 have a hook at one end of the mouth of the first channel 71, one end of the buckle cover 12 is buckled on the hook, and the other end is buckled and pressed on the outer side surface of the insulating glass 3; a fifth sealing strip 65 is pressed between the buckle cover 12 and the outer side surface of the insulating glass 3, and the fifth sealing strip 65 extends circumferentially and completely covers the insulating glass 3.
[0039] Specifically, the buckle cover 12 and the upper beam 1 (or the lower beam 2) form a mounting groove, and the hollow glass 3 is inserted into the mounting groove for installation; an aluminum alloy support bar 14 is fixed to the bottom of the mounting groove, which is used to support the hollow glass 3 so that a certain space is formed between the bottom end of the hollow glass 3 and the rigid polyurethane foam 5, and a PE foam 13 is arranged in the space.
[0040] In summary, compared with the prior art, the technical solution of the present invention has the following advantages:
[0041] In the first channel surrounded by the upper crossbeam and the lower crossbeam, sealing strips are used to isolate the composite of the aluminum alloy profile and rigid foam polyurethane from the outside world. The sealing strips on the outside of the rigid foam polyurethane can effectively prevent the rigid foam polyurethane from contacting with the outside air and rainwater, thereby delaying the aging of the rigid foam polyurethane and preventing the thermal insulation performance of the rigid foam polyurethane from decreasing. The method of pouring and filling rigid foam polyurethane is adopted to form the rigid foam polyurethane and the crossbeam (aluminum alloy profile) as one piece, thereby preventing the hollow glass from directly contacting the crossbeam (aluminum alloy profile) and reducing the heat transfer efficiency, thereby achieving the effect of reducing energy consumption. The sealing strips on both sides of the rigid foam polyurethane can prevent water and air leakage in the first channel, and cooperate with the second channel surrounded by the upper crossbeam and the lower crossbeam to realize the isolation of the rigid foam polyurethane from the wall (or indoor), further enhancing the effect of preventing water and air leakage and preventing heat conduction inside and outside the aluminum profile.
[0042] The channel surrounded by the upper crossbeam and the lower crossbeam is separated into a first channel and a second channel by a concave and convex plug-in structure. A sealing strip is arranged in the first channel for sealing, and a sealing strip is also arranged at the plug-in joint to achieve sealing. A water filter sponge is arranged in the second channel to absorb water and a leakage hole is arranged to drain water in time. In addition to the function of leaking water and air, this combined design can also isolate the indoor and outdoor environment, reduce indoor and outdoor air circulation and heat transfer, and further reduce energy consumption, thereby achieving an ultra-low energy consumption effect.
[0043] The upper beam 1 and the lower beam 2 are pressed against the outer side of the insulating glass 3 by continuous and fully wrapped sealing strips on the outdoor side, so that the unit curtain wall system has higher wind pressure resistance, air tightness, water tightness, sound insulation and heat insulation thermal properties.
[0044] An aluminum alloy sealing plate 9 is laid in the second channel 72 to serve as a drainage groove to prevent water leaking into the second channel 72 from directly contacting the lower beam 2 and causing corrosion, thereby affecting the structural strength of the lower beam 2 .
[0045] By designing the cavity 23 in the lower cross beam 2 to be connected to the drainage groove, the accumulated water can be discharged in time to avoid the drainage groove being filled with water and causing leakage.
[0046] By arranging water filter sponges at both ends of the second channel 72 , the amount of water leaking from the first channel 71 into the second channel 72 and the amount of water leaking from the second channel 72 into the room can be reduced.
[0047] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by a technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.
Claims
1. An ultra-low energy consumption unit curtain wall node, characterized in that: It comprises an adjacent upper crossbeam and a lower crossbeam, wherein insulating glass is installed at opposite ends of the upper crossbeam and the lower crossbeam, through openings are arranged at the side end surfaces of the upper crossbeam and the lower crossbeam facing the insulating glass, and the through openings are filled with rigid foam polyurethane, the upper crossbeam and the lower crossbeam are locally plug-fitted on the inner side of the insulating glass, and a first sealing strip is pressed in the fitting gap, and the facing surfaces of the upper crossbeam and the lower crossbeam form a first channel and a second channel separated by the plug-fitting part, the first channel is closer to the insulating glass than the second channel, the first sealing strip extends into the first channel, and a second sealing strip and a third sealing strip are arranged in the first channel for pressing the first sealing strip and sealing the first channel, and the rigid foam polyurethane is located between the second sealing strip and the third sealing strip.
2. The ultra-low energy consumption unit curtain wall node according to claim 1, characterized in that: The upper crossbeam is provided with a slot, the lower crossbeam is provided with an insert strip, the slot is provided with a first water filter sponge, the insert strip is inserted into the slot and presses the first sealing strip onto the first water filter sponge.
3. The ultra-low energy consumption unit curtain wall node according to claim 1, characterized in that: An end of the second channel away from the insulating glass is blocked with a second water filtering sponge.
4. The ultra-low energy consumption unit curtain wall node according to claim 3 is characterized in that: The lower cross beam has an edge at one end located inside the insulating glass, and the second water filter sponge has an extension portion, which is pressed by the edge to the end face of the upper cross beam located inside the insulating glass.
5. The ultra-low energy consumption unit curtain wall node according to claim 4, characterized in that: A fourth sealing strip is tightly pressed between the edge and an end surface of the upper cross beam located on the inner side of the insulating glass.
6. The ultra-low energy consumption unit curtain wall node according to claim 1, characterized in that: A sealing plate is laid in the second channel, and the sealing plate forms a drainage ditch for receiving water leaking from the gap between the upper beam and the lower beam.
7. The ultra-low energy consumption unit curtain wall node according to claim 6, characterized in that: A plurality of cavities are arranged in the lower cross beam, the drainage grooves are connected with the cavities through through holes, the lowest cavity is provided with a drainage hole, and a water-proof and heat-insulating layer is attached to the inner wall of the cavity.
8. The ultra-low energy consumption unit curtain wall node according to claim 1, characterized in that: The upper crossbeam and the lower crossbeam are detachably connected with buckle covers, which are buckled on the outer side of the insulating glass. A fifth sealing strip is pressed between the buckle cover and the outer side of the insulating glass, and the fifth sealing strip extends along the circumference of the insulating glass and fully covers it.
9. The ultra-low energy consumption unit curtain wall node according to claim 1, characterized in that: The first channel is connected to the outside, the first sealing strip is attached to the lower cross beam and extends to the connection between the first channel and the outside, and the upper surface of the first sealing strip attached to the lower cross beam has a slope suitable for draining water to the connection.
10. The ultra-low energy consumption unit curtain wall node according to claim 1, characterized in that: PE foam is provided between the rigid polyurethane foam and the end of the hollow glass.