Edge Sealing Structure of Laminated Glass

Abstract

The present invention relates to the technical field of glass sealing, and provides an edge sealing structure for laminated glass. The edge sealing structure of the laminated glass includes: a transparent component and a sealing component. The sealing component is pressed on the edge of the transparent component. The transparent component includes at least two first transparent layers, and the first transparent layers are distributed in a laminated manner. A second transparent layer is provided between adjacent two first transparent layers. The edge of at least one outermost first transparent layer and the edge of its adjacent first transparent layer are in a stepped shape. The sealing component includes a plurality of seals and a plurality of connectors, and the plurality of seals are connected by the plurality of connectors. The present invention overcomes the defect of insufficient edge sealing of laminated glass in the prior art, enhances the sealing tightness of the edge of the sealed glass, improves the sealing performance of the laminated glass, and further prevents the erosion of water vapor.

Description

Technical Field

[0001] The present invention relates to the technical field of glass sealing, and particularly relates to an edge sealing structure for laminated glass. Background Art

[0002] Windscreen glasses of aircraft, ships, etc. have multiple transparent plates and organic transparent films. During flight, the windscreen glass of an aircraft bears the internal and external pressure difference and has a certain degree of deformation. If a certain transparent plate breaks, it will break into many small pieces under the action of the pressure difference, but the organic transparent film can connect the pieces together. As long as the remaining transparent plates remain intact, the windscreen glass of the aircraft is still safe.

[0003] However, the transparent plate and the organic transparent film are bonded by chemical bonds and hydrogen bonds, and this bonding method is prone to de-bonding due to water vapor erosion. In addition, most of the transparent plates inside the windscreen glass of an aircraft and the organic transparent film contain an electric heating system. If water vapor erosion occurs, it is easy to cause a short circuit or even electric sparks in the electric heating system, resulting in safety accidents. Therefore, the edge sealing of laminated glass is crucial. Summary of the Invention

[0004] The present invention provides an edge sealing structure for laminated glass to solve the problem of insufficient sealing of laminated glass in the prior art, enhance the sealing tightness of the edge of the sealed glass, improve the sealing performance of the laminated glass, and further prevent water vapor erosion.

[0005] An edge sealing structure for laminated glass includes: a transparent component and a sealing component. The sealing component is pressed on the edge of the transparent component. The transparent component includes at least two first transparent layers, and the first transparent layers are distributed in a laminated manner. A second transparent layer is provided between adjacent two of the first transparent layers. The edge of at least one outermost first transparent layer and the edge of its adjacent first transparent layer are in a stepped shape. The sealing component includes a plurality of sealing members and a plurality of connecting members. The plurality of sealing members are connected by the plurality of connecting members. The sealing member includes,

[0006] A first sealing member, which is arranged on the outer surface of the outermost first transparent layer arranged in a stepped shape and extends beyond the edge of the first transparent layer;

[0007] A second sealing member, which wraps the edge and part of the outer surface of the outermost first transparent layer arranged in a stepped shape, the edge of the adjacent second transparent layer, and part of the upper surface of the adjacent first transparent layer. The second sealing member is partially closely attached below the first sealing member;

[0008] A third sealing member, which connects two first transparent layers with the same connection area and the second transparent layer in the middle thereof;

[0009] A fourth seal, at least one end of which is connected to the first seal and wraps the first transparent layer with the same wrapping area.

[0010] According to an edge sealing structure of a laminated glass provided by the present invention, the connecting member includes

[0011] An interface bonding transition piece, which is arranged at the connection between the first seal and the fourth seal and is used to connect the first seal and the fourth seal;

[0012] A spacer block, which is arranged on one side of the second seal and extends to the arc part of the first transparent layer, and the spacer block is flush with the flat part at the bottom end of the second seal;

[0013] A pressing plate, which is arranged above the second seal and the spacer block and is used to connect the second seal to the first seal and the fourth seal respectively;

[0014] A sealing strip, which wraps the remaining transparent components and is located between the third seal and the fourth seal.

[0015] According to an edge sealing structure of a laminated glass provided by the present invention, among two adjacent first transparent layers at the stepped part, the area of the outermost first transparent layer is smaller than the area of the innermost first transparent layer.

[0016] According to an edge sealing structure of a laminated glass provided by the present invention, the area of the second transparent layer between two adjacent first transparent layers at the stepped part matches the area of the smaller one of the first transparent layers.

[0017] According to an edge sealing structure of a laminated glass provided by the present invention, the first seal and the second seal are made of a sulfur-based sealant or a polyurethane-based sealant.

[0018] According to an edge sealing structure of a laminated glass provided by the present invention, the third seal is made of a urethane-based sealant or a butyl-based bonding material.

[0019] According to an edge sealing structure of a laminated glass provided by the present invention, the fourth seal is made of a silicone-based sealant or a polysulfide-based sealant.

[0020] According to an edge sealing structure of a laminated glass provided by the present invention, the interface bonding transition piece is made of one of the materials of aluminum alloy, glass fiber board, polyester fiber board, carbon fiber board, phenolic board, and the thickness is less than or equal to 0.5 mm.

[0021] According to an edge sealing structure of a laminated glass provided by the present invention, the spacer block and the pressing plate are assembled as a whole.

[0022] According to an edge sealing structure of a laminated glass provided by the present invention, the sealing strip is made of one of an aluminum foil strip, a butyl strip or a polyurethane strip, and the thickness is less than or equal to 0.1 mm.

[0023] One or more of the above technical solutions in the embodiments of the present invention have at least one of the following technical effects:

[0024] The present invention sets corresponding seals according to different connection structures of the first transparent layer and the second transparent layer. The design of the seals is more targeted, so as to better meet the sealing effect between them, thereby improving the tightness and moisture-proof performance of the connection of the entire laminated glass. The present invention designs corresponding seals for different structural parts and then uniformly wraps them on the outermost side. It can not only ensure the tightness of the connection between each part, but also ensure the tightness of the overall connection.

[0025] The present invention is provided with a plurality of connecting pieces, which can connect each seal into a whole, making the sealing assembly more firm and tight. And each connecting piece has its own shape and structure, and can be well connected with the seal. Among them, the interface bonding transition piece adopts a flat plate structure to bond the first seal and the fourth seal, so that the first seal and the fourth seal form a firm package to wrap and seal the transparent assembly from the outside. Among them, the pressing plate is set in a "Z" shape structure to better match the shape of the second seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0027] Figure 1 is the first structural schematic diagram of the edge sealing structure of the laminated glass provided by the present invention;

[0028] Figure 2 is the second structural schematic diagram of the edge sealing structure of the laminated glass provided by the present invention;

[0029] Figure 3 is the third structural schematic diagram of the edge sealing structure of the laminated glass provided by the present invention.

[0030] Reference Signs:

[0031] 101: First transparent layer; 102: Second transparent layer; 201: First seal; 202: Second seal; 203: Third seal; 204: Fourth seal; 301: Interface bonding transition piece; 302: Spacer block; 303: Pressing plate; 304: Sealing tape. Detailed implementation mode

[0032] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the present invention will be clearly and completely described below with reference to the accompanying drawings in the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0033] In the description of the embodiments of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "first" and "second" are used for numbering the product components for clear description and do not represent any substantial difference. The directions of "up" and "down" are subject to the directions shown in the drawings. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances. In addition, the meaning of "a plurality of" is two or more. In the specification and the claims, "and / or" means at least one of the connected objects. The character " / " generally means that the related objects before and after are in an "or" relationship.

[0034] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] According to the report of "Aviation Knowledge", in fact, the probability of accidents caused by cracks in the windshields of global civil airliners far exceeds our cognition. Nowadays, among the more than a hundred thousand civil aviation flights around the world every day, an unsafe accident caused by the breakage of the cockpit windshield occurs every one or two weeks. The windshield glass usually has multiple layers, and its joints are sealed with sealant and then connected to the fuselage through high-strength bolts.

[0036] During flight, the windshield of an aircraft is subjected to internal and external pressure differences, resulting in certain deformations. If a certain layer of transparent plate breaks, it will break into many small fragments under the action of the pressure difference. However, the organic transparent film can connect the fragments together. As long as the remaining transparent plates remain intact, the aircraft windshield is still safe. However, the transparent plate and the organic transparent film are bonded by chemical bonds and hydrogen bonds, and this bonding method is easily eroded by water vapor and causes debonding. In addition, most aircraft windshield transparent plates contain an electric heating system between them and the organic transparent film. If water vapor erosion occurs, it is easy to cause a short circuit in the electric heating system or even produce electric sparks, resulting in safety accidents. It should be noted that the present invention is not limited to the windshields of aircraft or ships, and is applicable as long as it strengthens the connection between multiple layers of objects and enhances its moisture-proof effect. This includes the windshields of high-speed trains, subways, trains, cars, etc., and even the glass windows used in high-rise buildings, the glass used in glass walkways, and the glass used in banks or jewelry stores.

[0037] In order to connect the laminated glass more firmly and improve its moisture-proof effect, referring to Figures 1 - 3 , an edge sealing structure of a laminated glass is provided in an embodiment of the present invention, including: a transparent component and a sealing component. The sealing component is pressed on the edge of the transparent component. The transparent component includes at least two first transparent layers 101, which are stacked. A second transparent layer 102 is provided between adjacent two first transparent layers 101. The edge of at least one outermost first transparent layer 101 is stepped with the edge of its adjacent first transparent layer 101. The sealing component includes a plurality of seals and a plurality of connectors. The plurality of seals are connected by the plurality of connectors. The seal includes a first seal 201, which is provided on the outer surface of the outermost first transparent layer 101 arranged in a stepped manner and extends beyond the edge of the first transparent layer 101; a second seal 202, which wraps the edge and part of the outer surface of the outermost first transparent layer 101 arranged in a stepped manner, the edge of the adjacent second transparent layer 102, and part of the upper surface of the adjacent first transparent layer 101. The second seal 202 is partially in contact with the lower part of the first seal 201; a third seal 203, which connects two first transparent layers 101 with the same area and the second transparent layer 102 therebetween; a fourth seal 204, at least one end of which is connected to the first seal 201 and wraps the first transparent layer 101 with the same area.

[0038] As can be seen from the above structure, in this embodiment, corresponding seals are set according to different connection structures of the first transparent layer 101 and the second transparent layer 102. The design of the seals is more targeted, so as to better meet the sealing effect between them, thereby improving the tightness of the connection and the moisture-proof performance of the entire laminated glass. The design idea of the seal assembly in this laboratory example is to first design corresponding seals for different structural parts, and finally wrap them uniformly on the outermost side. The advantage of this is that it can not only ensure the tightness of the connection between each part, but also ensure the tightness of the overall connection. Specifically analyzed: There are mainly two structures at the edge of the transparent component in this embodiment. One is the stepped type on the outermost side, and the other is the straight plate type. Different seals are adopted for the sealing of these two different structural parts, and the specific effects are as follows:

[0039] For the stepped type, in this embodiment, the first seal 201 and the second seal 202 are used in combination for sealed connection. The second seal 202 has an approximate "Z" - shaped structure, which can perfectly match the shape of the step, so as to better seal the stepped part and avoid the existence of gaps. And the bottom of the first seal 201 has a gap adapted to the second seal 202. The first seal 201 is arranged on the top of the second seal 202 to compact it, thus further ensuring the tightness of the second seal 202; For the straight plate type, since the edge of the first transparent layer 101 is arc - shaped, there will be gaps even if the areas between two adjacent first transparent layers 101 are the same. In this embodiment, the third seal 203 is used for sealing here. The shape of the third seal 203 perfectly matches the gap between the two first transparent layers 101, so the sealing is tighter. In addition, after the sealing between the above two structures is well - treated, in this embodiment, a fourth seal 204 is arranged outside the second seal 202 and the third seal 203. The fourth seal 204 is connected to the first seal 201 to form the outermost enclosure, thus ensuring the integrity of the entire seal assembly, forming a double - layer seal, and further improving the moisture - proof performance.

[0040] It should be noted that the structure of the transparent component in this embodiment includes two types. One is that only the outermost side is stepped, that is, single-sided stepped; the other is that both outermost sides are stepped, that is, double-sided stepped. However, both of these two methods can include multiple layers of the first transparent layer 101 and the second transparent layer 102. Specifically, it can be two first transparent layers 101 and one second transparent layer 102, three first transparent layers 101 and two second transparent layers 102, four first transparent layers 101 and three second transparent layers 102, etc. The same thing is that the outermost side is the first transparent layer 101, and the second transparent layer 102 is sandwiched between two adjacent first transparent layers 101. The thickness of each first transparent layer 101 can be the same or different. According to the number of the first transparent layers 101, it can be divided into double-layer, triple-layer and multi-layer. Among them, the sealing structures of three layers and above can all adopt single-sided stepped and double-sided stepped, and can be combined according to actual situations. The above embodiment adopts a three-layer single-sided stepped structure.

[0041] Referring to Figure 2 , according to some embodiments of the present invention, it is a three-layer double-sided stepped structure. For the transparent component structure, three first transparent layers 101 are arranged in an upper and lower symmetric structure. The areas of the two outer first transparent layers 101 are smaller than that of the middle first transparent layer 101, and the two second transparent layers 102 are respectively located between the three first transparent layers 101. The area of the second transparent layer 102 is matched with the smaller first transparent layer 101, so that stepped structures are formed on both the upper and lower surfaces of the present invention. And for the sealing component, the stepped structure of the upper half part is the same as that of the three-layer single-sided stepped structure. The difference between the structure of the sealing component in this embodiment and the three-layer single-sided stepped structure is that the structure of the sealing component is upper and lower symmetric, that is, the mechanism of the fourth seal 204 is upper and lower symmetric. The lower end of the fourth seal 204 is also connected to the first seal 201 through the interface bonding transition piece 301. In this embodiment, since there is no straight plate structure, the third seal 203 and the sealing tape 304 are not required.

[0042] Referring to Figure 3 , according to some embodiments of the present invention, it is a double-layer structure, and only one side of the double-layer structure is stepped. Therefore, the top structure of the sealing component is the same as the upper half part of the above two embodiments, and will not be elaborated here. The difference between this embodiment and the above two embodiments lies in the different structure of the lower half part of the sealing component. Since there is no structure of two first transparent layers 101 with the same area in the lower half part of this embodiment, the third seal 203 is not required, and the lower half part of this embodiment is directly wrapped by the fourth seal 204.

[0043] Referring to Figures 1 - 3, according to some embodiments of the present invention, the connecting member includes an interfacial bonding transition piece 301, which is arranged at the joint of the first seal 201 and the fourth seal 204 and is used to connect the first seal 201 and the fourth seal 204; a spacer block 302, which is arranged on one side of the second seal 202 and extends to the arc part of the first transparent layer 101, and the spacer block 302 is flush with the flat part at the bottom end of the second seal 202; a pressing plate 303, which is arranged above the second seal 202 and the spacer block 302 and is used to connect the second seal 202 to the first seal 201 and the fourth seal 204 respectively; a sealing tape 304, which wraps the remaining transparent components and is located between the third seal 203 and the fourth seal 204.

[0044] With the above structure, each seal can be connected into a whole, making the sealing assembly more firm and tight. Each connecting member has its own shape and structure, which can be well connected with the seals. In this embodiment, the interfacial bonding transition piece 301 is of a flat plate structure, bonding the first seal 201 and the fourth seal 204 together, so that the first seal 201 and the fourth seal 204 form a firm package to wrap and seal the entire transparent component from the outside. The pressing plate 303 is arranged in a "Z" shape, which can well match the shape of the second seal 202. At the same time, the spacer block 302 is fixedly arranged at the bottom end of the pressing plate 303 and is assembled with the pressing plate 303 as a whole. The thickness of the spacer block 302 is the same as that of the flat part at the bottom of the second seal 202. Its function is to use the second seal 202 and the spacer block 302 as the support points of the flat part at the bottom of the pressing plate 303, making the pressing plate 303 evenly stressed and reducing torque. The sealing tape 304 has a shape adapted to the edge of the first transparent layer 101. It can be tightly bonded to the edge of the first transparent layer 101 and bond the third seal 203 and the fourth seal 204 together. The area of the sealing tape 304 changes according to the number of the first transparent layers 101.

[0045] It should be noted that the shape and structure of the connecting member in this embodiment are not limited to Figures 1 - 3 the structure shown. Its structure should be determined according to the shape of the joints of each seal.

[0046] Refer to Figures 1 - 3, according to some embodiments of the present invention, among two adjacent first transparent layers 101 at the stepped portion, the area of the outermost first transparent layer 101 is smaller than the area of the inner first transparent layer 101. All the first transparent layers 101 are coaxially arranged, and the edges differ by 5 - 30 mm. According to the above structure, the stepped arrangement can make the sealing of each transparent component tighter. Of course, the distance between the edges of two adjacent first transparent layers 101 can be 10 mm, 15 mm, 20 mm, 25 mm, etc., and can be specifically set according to the actual situation, which will not be elaborated here.

[0047] Refer to Figures 1 - 3 , according to some embodiments of the present invention, the area of the second transparent layer 102 between two adjacent first transparent layers 101 at the stepped portion matches the area of the smaller one of the first transparent layers 101. Making the area of the second transparent layer 102 at the stepped portion consistent with the area of the smaller first transparent layer 101 can better ensure that the second seal 202 seals the two.

[0048] Refer to Figures 1 - 3 , according to some embodiments of the present invention, the first seal 201 and the second seal 202 are made of sulfur - based sealant or polyurethane - based sealant.

[0049] Refer to Figures 1 - 3 , according to some embodiments of the present invention, the third seal 203 is made of urethane - based sealant or butyl - based bonding material. It should be noted that the materials of the second seal 202 and the third seal 203 can be interchanged.

[0050] Refer to Figures 1 - 3 , according to some embodiments of the present invention, the fourth seal 204 is made of silicone - based sealant or polysulfide - based sealant.

[0051] Refer to Figures 1 - 3 , according to some embodiments of the present invention, the interface bonding transition piece 301 is made of one of the materials such as aluminum alloy, glass fiber board, polyester fiber board, carbon fiber board, phenolic board, and the thickness is less than or equal to 0.5 mm.

[0052] Refer to Figures 1 - 3 , according to some embodiments of the present invention, the spacer 302 and the pressing plate 303 are assembled as a whole.

[0053] Refer to Figures 1 - 3 , according to some embodiments of the present invention, the sealing tape 304 is made of one of the materials such as aluminum foil tape, butyl tape or polyurethane tape, and the thickness is less than or equal to 0.1 mm.

[0054] In the embodiments of the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely means that the horizontal height of the first feature is less than that of the second feature.

[0055] In the description of this specification, the description with reference to terms such as "an embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without conflict, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An edge sealing structure for laminated glass, comprising: A transparent component and a sealing component, the sealing component being pressed against the edge of the transparent component. The transparent component includes at least two first transparent layers (101) which are stacked and distributed, and a second transparent layer (102) is provided between adjacent two of the first transparent layers (101). The edges of at least one outermost first transparent layer (101) and its adjacent first transparent layer (101) are stepped. It is characterized in that the sealing component includes a plurality of sealing members and a plurality of connecting members, and the plurality of sealing members are connected by the connecting members. The sealing members include, A first sealing member (201) which is arranged on the outer surface of the outermost first transparent layer (101) arranged in a stepped manner and extends beyond the edge of the first transparent layer (101); A second sealing member (202) which wraps the edge and part of the outer surface of the outermost first transparent layer (101) arranged in a stepped manner, the edge of the adjacent second transparent layer (102), and part of the upper surface of the adjacent first transparent layer (101), and part of the second sealing member (202) is closely attached to the lower part of the first sealing member (201); A third sealing member (203) which connects two first transparent layers (101) with the same area and the second transparent layer (102) in the middle thereof; A fourth sealing member (204) which is connected to the first sealing member (201) at least at one end and wraps the first transparent layer (101) with the same area; The connecting members include, An interface bonding transition piece (301) which is arranged at the connection part of the first sealing member (201) and the fourth sealing member (204) and is used for connecting the first sealing member (201) and the fourth sealing member (204); A spacer block (302) which is arranged on one side of the second sealing member (202) and extends to the arc part of the first transparent layer (101), and the spacer block (302) is flush with the flat part at the bottom end of the second sealing member (202); A pressing plate (303) which is arranged above the second sealing member (202) and the spacer block (302) and is used for connecting the second sealing member (202) to the first sealing member (201) and the fourth sealing member (204) respectively; A sealing tape (304) which wraps the remaining transparent component and is located between the third sealing member (203) and the fourth sealing member (204); Among the two adjacent first transparent layers (101) at the stepped part, the area of the outermost first transparent layer (101) is smaller than the area of the first transparent layer (101) located inside; The area of the second transparent layer (102) between two adjacent first transparent layers (101) at the stepped part matches the area of the smaller one of the first transparent layers (101).

2. The edge sealing structure of the laminated glass according to claim 1, characterized in that, The first sealing member (201) and the second sealing member (202) are made of sulfur-based sealant or polyurethane-based sealant.

3. The edge sealing structure of the laminated glass according to claim 1, characterized in that The third sealing member (203) is made of urethane-based sealant or butyl-based bonding material.

4. The edge sealing structure of the laminated glass according to claim 1, characterized in that, The fourth sealing member (204) is made of silicone-based sealant or polysulfide-based sealant.

5. The edge sealing structure of the laminated glass according to claim 1, characterized in that, The interface bonding transition piece (301) is made of one of aluminum alloy, glass fiber board, polyester fiber board, carbon fiber board, and phenolic board, and its thickness is less than or equal to 0.5 mm.

6. The edge sealing structure of the laminated glass according to claim 1, characterized in that, The spacer block (302) and the pressing plate (303) are assembled integrally.

7. The edge sealing structure of the laminated glass according to claim 1, characterized in that, The sealing tape (304) is made of one of aluminum foil tape, butyl tape, or polyurethane tape, and its thickness is less than or equal to 0.1 mm.

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