Methods for installing laminated glass and its conductive components, vehicles
By drilling holes in the inner sheet of laminated glass and integrally injection molding the connector, the problems of water leakage and glass strength in the lead-out and fixing of conductive wires in laminated glass are solved, achieving more reliable sealing and a simplified installation process, and reducing production costs.
Patent Information
- Application Number
- CN202411166526.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2044-08-23
AI Technical Summary
Existing methods for leading out and fixing conductive wires in laminated glass have problems such as water leakage, reduced glass strength, and complicated installation procedures, which affect vehicle safety and production efficiency.
Holes are drilled at predetermined positions on the inner glass to form openings, and a connector is integrally injection molded with the conductive wires of the functional layer and the conductive plug. The connector is fixed to the laminated glass through the openings and fixed to the outer glass using adhesive layers and sealants. After lamination, a connecting edge is formed by injection molding to improve sealing and strength.
This design avoids water leakage caused by direct contact between the conductive wire and the PU adhesive, improves the strength of both the conductive wire and the glass, simplifies the installation process, optimizes the installation space, and reduces manufacturing costs and the risk of glass breakage.
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Figure CN118927731B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of laminated glass manufacturing technology, and particularly to a method for installing laminated glass and its conductive components, and a vehicle. Background Technology
[0002] In traditional automobile manufacturing, automotive glass, or automotive glass with functional layers, is made by first applying polyurethane (PU) adhesive to the edges of the glass and then fixing it to the body sheet metal.
[0003] Currently, for laminated glass with functional layers, conductive wires need to be led out to connect to a power source, thereby conducting electricity to the functional layers. There are various methods for leading out and fixing these conductive wires in laminated glass.
[0004] The first existing technology involves bending the conductive wire extending from the glass, attaching it tightly to the glass or the edge with double-sided adhesive, and then connecting it to the power source inside the car through a PU adhesive layer.
[0005] The aforementioned first prior art has the following disadvantages: When the conductive wire extending from the glass is bent and pressed tightly against the glass, and then passed through the PU adhesive layer to connect to the power source inside the car, if the PU adhesive and the conductive wire do not bond well, gaps may appear between the PU adhesive and the conductive wire, allowing moisture to enter the car through these gaps. Moisture entering the car may affect or damage the electronic components inside the vehicle, thereby affecting vehicle operation or causing safety issues.
[0006] The second existing technology involves placing the glass with conductive wires, as described in the first existing technology, onto a molding die for integral injection molding. The conductive wires pass through the bonding surface between the molding die and the glass and are led into the vehicle interior, thereby enabling conductivity to the functional layer of the laminated glass.
[0007] The second prior art described above has the following disadvantages: When the conductive wires extending from the glass are bent and integrally injection molded with the edging, and then passed through the PU adhesive layer to connect to the power supply inside the car, there is no adhesive bonding between the edging and the glass, resulting in local gaps. Moisture may enter the car through these gaps; the moisture entering the car may affect or damage the electronic components inside the car, thereby affecting the use of the vehicle or causing safety problems. Furthermore, when the glass is placed into the edging mold for injection molding, the protruding conductive wires compress the glass during mold closing or injection, which may affect the glass strength and potentially cause the glass to crack.
[0008] The third existing technology involves drilling a hole in the inner glass of the laminated glass, and then allowing conductive wires to pass through this hole, bypassing the PU adhesive, and connecting to the vehicle's power supply, thereby achieving the goal of waterproofing.
[0009] The aforementioned third prior art has the following disadvantages: because the conductive wire contacts the periphery of the hole, it will affect the application around the glass hole, and the glass is prone to cracking; at the same time, when the vehicle is in motion, the conductive wire is constantly rubbing against the edge of the glass hole, and the conductive wire itself is prone to wear and breakage, affecting the conductivity.
[0010] In addition, all three types of connectors require fixing to the body sheet metal using fasteners with clips, which not only takes up space but also increases the installation process.
[0011] Therefore, it is necessary to propose a method for setting conductive components in laminated glass to solve at least one of the above-mentioned problems. Summary of the Invention
[0012] To address the shortcomings of existing technologies, this invention provides a novel method for setting up laminated glass and its conductive components, as well as a vehicle. This method innovates upon existing methods for leading out and fixing conductive wires in laminated glass, not only improving the reliability and sealing of the conductive component structure but also simplifying the process and reducing manufacturing costs.
[0013] The specific technical solution of the embodiments of the present invention is as follows:
[0014] A laminated glass includes an inner glass pane, an outer glass pane, and a connecting functional layer disposed between the inner and outer glass panes. The connecting functional layer includes an adhesive layer and a functional layer, and the functional layer is provided with conductive wires. An opening of a predetermined size is provided at a predetermined position in the inner glass pane. A connector adapted to the opening is provided at the opening. The connector is integrally injection molded by combining the conductive wires of the functional layer with a conductive plug. The connector passes through the opening, passes through the inner glass pane, and is fixed to the laminated glass.
[0015] In a preferred embodiment, the connector has a bottom surface facing the outer glass pane, and the bottom surface is fixed to the inner surface of the outer glass pane by adhesive bonding.
[0016] In a preferred embodiment, the bonding method includes: the connector is bonded and fixed to the laminated glass by the adhesive layer that is melted during the lamination of the laminated glass.
[0017] In a preferred embodiment, the adhesive layer comprises at least one layer of PVB film.
[0018] In a preferred embodiment, the bonding method includes: applying an adhesive to the bottom surface of the connector, and bonding and fixing the connector to the laminated glass using the adhesive or the adhesive and the adhesive layer during the lamination of the laminated glass.
[0019] In a preferred embodiment, the adhesive comprises a heat-sensitive adhesive.
[0020] In a preferred embodiment, the adhesive layer has a region for filling the adhesive, the region for filling the adhesive is directly opposite the opening region, and the edge of the region for filling the adhesive is located between -0.5 mm and 3 mm from the edge of the opening.
[0021] In a preferred embodiment, the connector has a circumferential surface that mates with the inner surface of the inner glass pane, and a sealant is further disposed between the circumferential surface and the inner glass pane.
[0022] In a preferred embodiment, the sealant includes any one of the following: adhesive double-sided tape, PU adhesive, and foam.
[0023] In a preferred embodiment, before lamination, the gap between the circumferential surface of the connector that mates with the inner surface of the inner glass and the inner surface of the inner glass is less than 1.5 mm.
[0024] In a preferred embodiment, the connector is secured to the laminated glass by a connector edge formed by injection molding between the two.
[0025] In a preferred embodiment, the connector includes a connecting base, which is injection molded from insulating plastic. The connecting edging is disposed between the connecting base and the inner glass pane. The edge of the laminated glass is also provided with an injection-molded edging, and a sealant is disposed between the injection-molded edging and the connecting edging.
[0026] A vehicle provided with any of the laminated glass described above.
[0027] A method for installing a conductive component in laminated glass, the laminated glass comprising an inner glass pane, an outer glass pane, and a connecting functional layer disposed between the inner glass pane and the outer glass pane, the connecting functional layer comprising an adhesive layer and a functional layer, the method for installing the conductive component in laminated glass comprising:
[0028] A hole is drilled at a predetermined position in the inner glass to form an opening of a predetermined size;
[0029] The conductive wires of the functional layer are integrally injection molded with the conductive plug to form a connector that is compatible with the opening;
[0030] The connector is passed through the opening into the inner glass pane and fixed to the laminated glass.
[0031] In a preferred embodiment, the connector is fixed to the laminated glass in the following manner:
[0032] Connect the conductive part of the connector to the conductive line of the functional layer, and make the connector contact the outer glass through the adhesive layer;
[0033] The connector is then joined to the laminated glass.
[0034] In a preferred embodiment, the adhesive layer includes a PVB film, and the bonding of the connector to the laminated glass specifically includes:
[0035] The connector and the laminated glass are placed in an autoclave, and a predetermined temperature and pressure are applied to the autoclave. Under the predetermined temperature and pressure conditions of the autoclave, the PVB film gradually melts, bonding the outer glass and the inner glass together, while simultaneously bonding the connector to the outer glass.
[0036] In a preferred embodiment, the connector is fixed to the laminated glass in the following manner:
[0037] Remove the adhesive layer from the area where the inner surface of the outer glass sheet corresponds to the opening;
[0038] The conductive part of the connector is inserted between the inner glass and the outer glass and connected to the conductive line of the functional layer.
[0039] The connector is bonded to the area on the inner surface of the outer glass where the adhesive layer has been removed;
[0040] The connector is then joined to the laminated glass.
[0041] In a preferred embodiment, the connector is fixed to the laminated glass in the following manner:
[0042] The conductive part of the connector is inserted between the inner glass and the outer glass and connected to the conductive line of the functional layer.
[0043] The connector is bonded to the inner surface of the outer glass sheet through the opening;
[0044] The connector is then joined to the laminated glass.
[0045] In a preferred embodiment, joining the connector to the laminated glass specifically includes:
[0046] The connector and the laminated glass are placed in an autoclave, and a predetermined temperature and pressure are applied to the autoclave. Under the predetermined temperature and pressure conditions of the autoclave, the outer glass and the inner glass are bonded by melting the PVB film. The connector and the outer glass are bonded by a heat-sensitive adhesive or a heat-sensitive adhesive and the adhesive layer.
[0047] A method for installing a conductive component in laminated glass, the laminated glass comprising an inner glass pane, an outer glass pane, and a connecting functional layer disposed between the inner glass pane and the outer glass pane, the connecting functional layer comprising an adhesive layer and a functional layer, the method for installing the conductive component in laminated glass comprising:
[0048] A hole is drilled at a predetermined position in the inner glass to form an opening of a predetermined size;
[0049] The conductive wires of the functional layer are extended into the opening;
[0050] The laminated glass is then laminated together.
[0051] The laminated glass and the connector are integrally injection molded together, and the connector and the laminated glass are fixed together by a connecting edge formed by injection molding between them.
[0052] The technical solution of the present invention has the following significant beneficial effects:
[0053] By drilling holes in the inner glass to lead out conductive wires, the water leakage problem caused by direct contact between the conductive wires and the PU adhesive used in the vehicle is avoided.
[0054] By innovating the existing method of leading out and fixing conductive wires in laminated glass, the laminated glass obtained by the above method can avoid the problem of glass cracking caused by the conductive wires squeezing the glass during the injection molding process, which is a problem in the prior art where the glass with conductive wires led out at the edge is placed in the edge-sealing mold and injection molded.
[0055] By combining the lead-out conductive wires with the external plug to form a connector, and fixing the PVB or heat-sensitive adhesive melted in the lamination process to the inner / outer glass, the vehicle power supply is directly inserted into the connector on this laminated glass to supply power to the functional layer; this reduces the installation steps of the OEM, optimizes the installation space, improves production efficiency and saves related costs;
[0056] By fixing the connector to the glass through one-piece injection molding with edge binding, it can also protect the openings on the inner glass, increase the pressing strength, and reduce the risk of glass breakage.
[0057] Specific embodiments of the invention are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of the invention can be employed. It should be understood that the embodiments of the invention are not therefore limited in scope. Within the spirit and scope of the appended claims, embodiments of the invention include many changes, modifications, and equivalents. Features described and / or shown for one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments. Attached Figure Description
[0058] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of the invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely illustrative to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. Those skilled in the art, guided by the teachings of this invention, can select various possible shapes and proportions to implement the invention according to specific circumstances.
[0059] Figure 1 This is a flowchart illustrating the steps of a method for setting a conductive component in laminated glass according to an embodiment of this application.
[0060] Figure 2 This is a flowchart illustrating the steps of another method for setting a conductive component in laminated glass according to an embodiment of this application.
[0061] Figure 3 An exploded view of a laminated glass provided in the embodiments of this application;
[0062] Figure 4 This is a schematic diagram of the structure of a laminated glass provided in the embodiments of this application;
[0063] Figure 5 This is one of the cross-sectional schematic diagrams of a laminated glass at the connector provided in the embodiments of this application;
[0064] Figure 6 for Figure 5 A magnified view of a portion of position A in the diagram;
[0065] Figure 7 This is one of the cross-sectional schematic diagrams of a laminated glass at the connector provided in the embodiments of this application;
[0066] Figure 8 for Figure 7 A magnified view of a portion of position B in the diagram;
[0067] Figure 9 This is one of the cross-sectional schematic diagrams of a laminated glass at the connector provided in the embodiments of this application;
[0068] Figure 10 for Figure 9 A magnified view of the area at position C.
[0069] Reference numerals in the figures of this application:
[0070] 1. Outer glass pane;
[0071] 2. Inner glass pane; 20. Opening;
[0072] 3. Connecting functional layer; 31. Adhesive layer; 32. Functional layer; 321. Conductive wire;
[0073] 4. Connector; 41. Connector base; 42. Conductive plug;
[0074] 51. Connect the binding edges;
[0075] 52. Injection molding edge binding;
[0076] 6. Sealant;
[0077] 7. Sealant;
[0078] 8. Heat-sensitive adhesives. Detailed Implementation
[0079] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. After reading the present invention, any modifications of the present invention in various equivalent forms by those skilled in the art fall within the scope defined by the appended claims.
[0080] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0081] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0082] This invention provides a novel method for setting up laminated glass and its conductive components, as well as a vehicle, which innovates the existing methods for leading out and fixing conductive wires in laminated glass. This not only improves the reliability and sealing of the conductive component structure, but also simplifies the process and reduces manufacturing costs.
[0083] Please refer to the following: Figures 1 to 10 The embodiments of this application provide a laminated glass and a method for setting the conductive component of the laminated glass.
[0084] Please refer to the following: Figures 3 to 10 The laminated glass may include an inner glass 2, an outer glass 1, and a connecting functional layer 3 disposed between the inner glass 2 and the outer glass 1. The connecting functional layer 3 includes an adhesive layer 31 and a functional layer 32, and the functional layer 32 is provided with conductive wires. An opening 20 of a predetermined size is provided at a predetermined position of the inner glass 2. A connector 4 adapted to the opening 20 is provided at the opening 20. The connector 4 is integrally injection molded by the conductive wires of the functional layer 32 and the conductive plug. The connector 4 passes through the opening 20, passes through the inner glass 2, and is fixed to the laminated glass.
[0085] In this embodiment of the application, the laminated glass includes: an inner glass 2, an outer glass 1, a connecting functional layer 3 disposed between the inner glass 2 and the outer glass 1, and a connector 4. The connecting functional layer 3 includes an adhesive layer 31 and a functional layer 32.
[0086] In this embodiment, the laminated glass may mainly include an inner glass 2, a connecting functional layer 3, and an outer glass 1 stacked sequentially.
[0087] When the laminated glass is installed on a vehicle, the outer glass 1 is located on the outside of the vehicle, and the inner glass 2 is located on the inside of the vehicle. The outer glass 1 has a first surface and a second surface, wherein the first surface is the outer surface of the outer glass 1 and is in contact with the external environment, and the second surface is the inner surface of the outer glass 1 and can be connected to the connecting functional layer 3; the inner glass 2 has a third surface and a fourth surface, wherein the third surface is the outer surface of the inner glass 2, the fourth surface is the outer surface of the inner glass 2, the third surface of the inner glass 2 can be connected to the connecting functional layer 3, and the fourth surface of the inner glass 2 can be in contact with the interior environment of the vehicle.
[0088] The connecting functional layer 3 may include an adhesive layer 31 and a functional layer 32. The functional layer 32, as part of the laminated glass, may contain various functional elements, such as conductive lines 321, EC / LC / PDLC / heating or other functional films, sensors, etc.
[0089] The adhesive layer 31 can be located between the functional layer 32 and the inner glass 2 and the outer glass 1. For example, the adhesive layer 31 can include at least one layer, and the number of adhesive layers 31 can vary depending on the function of the laminated glass (the specific composition and arrangement of the functional layers, etc.). For example, the adhesive layer can include a first adhesive layer and a second adhesive layer, where the first adhesive layer can be located between the inner glass 2 and the functional layer 32, and the second adhesive layer can be located between the outer glass 1 and the functional layer 32.
[0090] The adhesive layer 31 can be a transparent thermoplastic polymer film or a colored thermoplastic polymer film, and the thickness of the adhesive layer 31 can be from 0.38 mm to 2.28 mm. For example, the thickness of the adhesive layer 31 can be, but is not limited to, 0.38 mm, 0.76 mm, 1.14 mm, 1.52 mm, 1.9 mm, 2.28 mm, or other values between 0.38 mm and 2.28 mm. The material of the thermoplastic polymer film can be selected from at least one of polyvinyl butyral (PVB), polyurethane (PU), ethylene-vinyl acetate copolymer (EVA), and ionic polymer (SGP). In the embodiments of this application, the material of the adhesive layer 31 is mainly illustrated by taking polyvinyl butyral (PVB) as an example. When other materials are used for the adhesive layer 31, this application can be adapted accordingly.
[0091] An opening 20 of a predetermined size is provided at a predetermined position of the inner glass 2. When the opening is drilled at the predetermined position of the inner glass 2, the opening is located in a dry area, such as the area enclosed by sealant (sealant PU glue), so that the sealant 7 can be used to stop external water from entering and prevent leakage. The specific shape of the opening 20 can be a round hole, an oblong hole, a square hole with rounded corners, a rectangular hole, or other types of holes; this application does not impose a specific limitation here. The size of the opening 20 is also not specifically limited here; it can be adaptively selected according to the outer contour dimensions of the connector 4 that is compatible with it.
[0092] A connector 4 adapted to the opening 20 is provided at the opening 20 position. The connector 4 integrally injection molds the conductive wire 321 of the functional layer 32 and the conductive plug 42. The connector 4 passes through the inner glass 2 through the opening 20 and is fixed on the laminated glass.
[0093] In this embodiment, by drilling a hole in the inner glass 2, the conductive wire 321 of the functional layer 32 and the conductive plug 42 are integrally injection molded to form a connector 4 adapted to the opening 20. The connector 4 is fixed to the laminated glass through the opening 20 and is connected to the power supply inside the vehicle. In this way, the functional layer 32 can realize corresponding functions, such as dimming, heating or other functions, while avoiding direct contact between the PU adhesive and the conductive wire 321, thereby avoiding potential water leakage problems.
[0094] Specifically, the inner glass 2 has an opening 20 with a connector 4 adapted to the opening 20. The connector 4 includes a connecting base 41 and a conductive plug 42 located in the middle of the connecting base 41. The conductive plug 42 is electrically connected to the conductive wire 321 of the functional layer 32. The conductive plug 42 and the conductive wire 321 of the functional layer 32 maintain contact. When the connector 4 is powered by an external power source, the external power source can supply power to the functional layer 32 through the conductive plug 42 and the conductive wire 321 of the functional layer 32.
[0095] In this application, by directly fixing the connector 4 to the laminated glass and electrically connecting it to the functional layer 32, the vehicle power supply can be directly plugged into the connector 4 to supply power to the functional layer 32. This not only reduces installation steps, optimizes installation space, improves production efficiency and reduces costs, but also improves the strength of the conductive wire 321 and the glass strength compared with the prior art, reducing the risk of glass cracking and breakage. In addition, it can also solve the problem of water leakage.
[0096] In some embodiments, the connector 4 has a bottom surface facing the outer glass 1, and the bottom surface is fixed to the inner surface of the outer glass 1 by adhesive bonding.
[0097] Please refer to the following: Figure 3 , Figure 4 , Figure 5 and Figure 6 In the first embodiment, the bonding method may include: the connector 4 is bonded and fixed to the laminated glass by the adhesive layer 31 that is melted during the lamination of the laminated glass.
[0098] The specific bonding method can be referred to the specific steps and description in the first embodiment of the method for fixing the connector 4 to the laminated glass in the following method for setting conductive components of laminated glass, and will not be repeated here.
[0099] Alternatively, please refer to the following: Figure 3 , Figure 4 , Figure 7 and Figure 8In the second embodiment, the bonding method may include: applying an adhesive to the bottom surface of the connector 4, and using the adhesive to bond and fix the connector 4 to the laminated glass during the lamination process. The adhesive may include a heat-sensitive adhesive.
[0100] The specific bonding method can be referred to the specific steps and description of the second embodiment of the method for fixing the connector 4 to the laminated glass in the following method for setting conductive components of laminated glass, and will not be repeated here.
[0101] In the second embodiment described above, the adhesive layer is provided with a region for filling the adhesive, the region for filling the adhesive is directly opposite (at least partially overlapping) the region for opening 20, and the edge of the region for filling the adhesive is located between -0.5 mm and 3 mm from the edge of opening 20.
[0102] Specifically, when removing the adhesive layer in a predetermined area through the opening 20 on the inner glass 2, the inner glass 2 has a rounded corner at the edge of the opening 20. The tool extending into the opening 20 of the inner glass 2 can have three different states. The first state is perpendicular to the surface of the inner glass 2. When the tool removes the adhesive layer opposite the opening 20 area with the tool perpendicular to the surface of the inner glass 2, the theoretical distance between the edge of the adhesive filling and the edge of the opening 20 is 0 mm. The second state is that the tool is tilted, with the tip tilted into the edge of the opening 20. In this case, the distance between the edge of the adhesive filling and the edge of the opening 20 is negative, specifically within -0.5 mm; that is, the edge of the adhesive filling is located outside the edge of the opening 20. The third state is that the tool is tilted in another direction, away from the edge of the opening 20. In this case, the distance between the edge of the adhesive filling and the edge of the opening 20 is positive, specifically within 3 mm.
[0103] In theory, when the distance between the edge of the adhesive-filled area and the edge of the opening 20 is 0 or a small negative value, the connector 4 with adhesive on its bottom surface can be completely fitted to the second surface of the outer glass 1 (without being affected by the existing adhesive layer around it), ensuring that the connector 4 can extend into the opening 20 to the maximum extent, so as to be more reliable and stable in the opening 20 and tightly connected with the laminated glass.
[0104] Alternatively, in a third embodiment, the bonding method may include: applying an adhesive to the bottom surface of the connector 4, and bonding and fixing the connector 4 to the laminated glass using the adhesive and the adhesive layer during the lamination process of the laminated glass. The adhesive may include a heat-sensitive adhesive.
[0105] In this embodiment, unlike the embodiments described above, it is not necessary to remove the adhesive layer area for filling adhesive that is directly opposite the opening 20 area. The specific bonding method can be found in the detailed steps and description of the third embodiment regarding the method of fixing the connector 4 to the laminated glass in the following method for setting conductive components in laminated glass; these details will not be repeated here.
[0106] In some embodiments, the connector 4 has a peripheral surface that mates with the inner surface of the inner glass 2, and a sealant 6 is further disposed between the peripheral surface and the inner glass 2 to improve the reliability and sealing of the connection at the mating position. The sealant 6 includes any one of the following: adhesive double-sided tape, PU adhesive, and foam.
[0107] In this embodiment, the sealant 6 can be a material with adhesive properties, such as adhesive double-sided tape, PU adhesive, etc. When this type of sealant 6 is applied to the periphery of the connector 4, the connector 4 and the laminated glass can be initially positioned before lamination. Specifically, the periphery of the connector 4 is bonded to the inner surface of the inner glass 2 to prevent the connector 4 from being misaligned with the opening 20 before lamination, thereby affecting the yield.
[0108] When the sealant 6 is a material that does not have adhesive properties, such as foam, the connector 4 and foam can be connected to the inner glass 2 by using an adhesive such as instant adhesive, thereby achieving the initial positioning of the connector 4 and the laminated glass.
[0109] Before lamination, the gap between the peripheral surface of the connector 4, which mates with the inner surface of the inner glass 2, and the inner surface of the inner glass 2 is less than 1.5 mm. This gap is mainly used to fill the aforementioned sealant. The size of this gap is adapted to the thickness of the sealant 6, and its specific value can be determined according to the thickness of the sealant 6; this application does not impose a single numerical limitation. Theoretically, this gap should not be too large. If it is too large, it will be difficult to match a sealant 6 of suitable thickness. At the same time, if the distance between the peripheral surface of the connector 4 and the inner surface of the inner glass 2 is too large, it will also affect the reliability of the connection between the connector 4 and the laminated glass.
[0110] In other embodiments, the connector 4 and the laminated glass are fixed together by a connecting edge 51 formed by injection molding between them. The connector 4 includes a connecting base 41, which is injection molded from insulating plastic. The connecting edge 51 is disposed between the connecting base 41 and the inner glass 2. The edge of the laminated glass is also provided with an injection-molded edge 52, and a sealant 7 is disposed between the injection-molded edge 52 and the connecting edge 51.
[0111] Specifically, the edge of the laminated glass may also be provided with an injection-molded edging 52, the connecting substrate 41 may be injection molded from insulating plastic, and a connecting edging 51 is provided between the connecting substrate 41 and the inner glass 2, and a sealant 7 is provided between the injection-molded edging 52 and the connecting edging 51.
[0112] The laminated glass provided in this embodiment can be provided using the above-mentioned method for setting the conductive component of the laminated glass: a hole is drilled at a predetermined position in the inner glass 2 to form an opening 20 of a predetermined size; the conductive wire 321 of the functional layer 32 is extended into the opening 20; the laminated glass is laminated together; the laminated glass and the connector 4 are integrally injection molded together, and the connector 4 and the laminated glass are fixed together by a connecting edge 51 formed by injection molding between them.
[0113] The connecting edge 51 of this injection molding solution serves to bond the connector 4 to the laminated glass, allowing the connector 4 to be subjected to more even force (the force is distributed to the inner surfaces of the inner glass 2 and the outer glass 1), reducing the risk of excessive force applied to the connector 4 when inserting external connector plugs on site, which could lead to glass breakage. It also protects the opening 20 of the inner glass 2; in addition, it also contributes to making the installation appearance more aesthetically pleasing.
[0114] This application also provides a vehicle that includes the aforementioned laminated glass. By providing the laminated glass, the vehicle can achieve the technical effects achieved by the aforementioned laminated glass implementation method. For details, please refer to the specific description of the above implementation method. This application will not repeat the details here.
[0115] like Figure 1 As shown, the method for setting a laminated glass conductive component provided in this application embodiment may include the following steps:
[0116] Step S10: Drill a hole at a predetermined position in the inner glass 2 to form an opening 20 of a predetermined size;
[0117] Step S12: Inject the conductive wire 321 of the functional layer 32 and the conductive plug 42 together to form a connector 4 that is compatible with the opening 20.
[0118] Step S14: Pass the connector 4 through the opening 20 through the inner glass 2 and fix it to the laminated glass.
[0119] In the embodiment provided by this invention, by drilling a hole in the inner glass 2, the conductive wire 321 of the functional layer 32 and the conductive plug 42 are integrally injection molded to form a connector 4 adapted to the opening 20. The connector 4 is fixed to the laminated glass through the opening 20 and is connected to the power supply inside the car. In this way, the functional layer 32 can realize dimming, heating or other functions, while avoiding direct contact between the PU adhesive and the conductive wire 321, thereby avoiding possible water leakage problems.
[0120] The following details each step of this application. In the embodiments of this application, the application of the laminated glass in a vehicle is used as an example for illustration. When the laminated glass is applied in other scenarios, the description of this application can be adapted accordingly, and will not be elaborated upon here.
[0121] In step S10, when a hole is drilled at a predetermined position on the inner glass 2, the hole is positioned in a dry area, such as the area enclosed by the sealant 7 (sealant PU glue), so that the sealant 7 can be used to stop external water from entering and prevent leakage. The specific shape of the opening 20 can be a round hole, an oblong hole, a square hole with rounded corners, or a rectangular hole, or a hole with other structures; this application does not make specific limitations here.
[0122] In step S12, when the conductive wire 321 of the functional layer 32 and the conductive plug 42 are integrally injection molded to form a connector 4 that matches the opening 20, the conductive wire 321 of the functional layer 32 is exposed at the opening 20. Then, the conductive plug 42 is brought into contact with the conductive wire 321 to ensure electrical conductivity before integral injection molding, thereby forming the connector 4 that matches the opening 20. Specifically, the shape and structure of the connector 4 can be determined according to the specific structure of the integral injection mold, and this application does not impose specific limitations here. For example, the connector 4 can be an elongated oval base with a certain thickness.
[0123] In step S14, the connector 4 is passed through the opening 20 through the inner glass 2 and fixed to the laminated glass, thereby realizing the lead-out and fixation of the conductive wire 321 of the laminated glass. There are various ways to fix the connector 4 to the laminated glass.
[0124] For example, in the first embodiment, fixing the connector 4 to the laminated glass may include the following steps:
[0125] Step S141: Connect the conductive part of the connector 4 to the conductive line 321 of the functional layer 32, and make the connector 4 contact the outer glass 1 through the adhesive layer 31;
[0126] Step S142: Join the connector 4 with the laminated glass.
[0127] In this embodiment, the connector 4 can be fixed to the laminated glass by utilizing the adhesive properties of the adhesive layer 31 during the lamination process.
[0128] Specifically, the adhesive layer 31 may include a PVB film. Joining the connector 4 with the laminated glass specifically includes: placing the connector 4 and the laminated glass into an autoclave, applying a predetermined temperature and pressure to the autoclave, and under the predetermined temperature and pressure conditions of the autoclave, the PVB film gradually melts, bonding the outer glass 1 and the inner glass 2 together, while simultaneously bonding the connector 4 to the outer glass 1.
[0129] Please refer to the following: Figure 3 , Figure 4 , Figure 5 and Figure 6 The connector 4 may include a connecting base 41 and a conductive plug 42. The connecting base 41 may be integrally formed of an insulating material; specifically, the material of the connecting base 41 may include plastic. The material of the conductive plug 42 may be a material with good electrical conductivity, such as a metal (copper, etc.).
[0130] A conductive wire 321 extends from the bottom of the connector 4. This conductive wire 321 can be in the form of a conductive sheet with a certain width and thickness. Of course, the specific form of the conductive wire 321 is not specifically limited in this application. Before lamination, the conductive wire 321 of the connector 4 can be inserted between the inner and outer glass sheets 1 with the functional layer 32, connecting with the conductive wire 321 of the functional layer 32 between the inner glass sheet 2 and the outer glass sheet 1. The bottom surface of the connector 4 is in contact with the inner surface of the outer glass sheet 1 through PVB, and then they are placed together in an autoclave for lamination.
[0131] In the lamination process, the above materials are subjected to high pressure in an autoclave under high pressure and high temperature. The PVB film is gradually melted by the high temperature and high pressure. While bonding the inner and outer glass sheets 1, the bottom surface of the connector 4 is firmly bonded to the inner surface of the outer glass sheet 1, thus fixing the connector 4 to the laminated glass.
[0132] Please refer to the following: Figure 3 , Figure 4 , Figure 7 and Figure 8 In the second embodiment, the method of fixing the connector 4 to the laminated glass may include the following steps:
[0133] Step S151: Remove the adhesive layer 31 in the area where the inner surface of the outer glass 1 corresponding to the opening 20 is located;
[0134] Step S152: Insert the conductive part of the connector 4 between the inner glass 2 and the outer glass 1 and connect it to the conductive line 321 of the functional layer 32;
[0135] Step S153: Adhere the connector 4 to the area on the inner surface of the outer glass 1 where the adhesive layer 31 has been removed;
[0136] Step S154: Join the connector 4 with the laminated glass.
[0137] In this embodiment, the conductive wire 321 leading out from the bottom of the connector 4 can be inserted between the inner glass 2 and the outer glass 1 with the functional layer 32, and connected to the conductive wire 321 inside the inner glass 2 and the outer glass 1. The bottom surface of the connector 4 is bonded to the inner surface of the outer glass 1 with a pre-bonded heat-sensitive adhesive 8 (heat-sensitive glue) (the PVB film in this area is pre-cut), and then they are placed together in an autoclave for lamination. Through the autoclave, under high pressure and high temperature, the connector 4 is fixed to the glass with heat-sensitive glue.
[0138] Specifically, joining the connector 4 with the laminated glass may include: placing the connector 4 and the laminated glass into an autoclave, applying a predetermined temperature and pressure to the autoclave, and bonding the outer glass 1 and the inner glass 2 by melting the PVB film under the predetermined temperature and pressure conditions of the autoclave, and bonding the connector 4 to the outer glass 1 by using a heat-sensitive adhesive 8.
[0139] In this design, the area on the inner surface of the outer glass 1 corresponding to the area where the adhesive layer 31 is removed completely covers the area of the opening 20. The edge of the area where the adhesive layer 31 is removed is located between -0.5 mm and 3 mm from the edge of the opening 20. The inner surface of the outer glass 1 has an area where the adhesive layer 31 is removed, and this area is larger than the area of the opening 20. The distance from the edge of this area to the edge of the opening 20 is between -0.5 mm and 3 mm, ensuring sufficient space is provided for the application of heat-sensitive adhesive to fix the connector 4 to the inner surface of the outer glass 1. This also avoids adversely affecting the overall performance of the adhesive layer 31 and allows for reliable fixation of the connector 4 to the laminated glass.
[0140] In the third embodiment, the method of fixing the connector 4 to the laminated glass may include the following steps:
[0141] Step S161: Insert the conductive part of the connector 4 between the inner glass 2 and the outer glass 1 and connect it to the conductive line 321 of the functional layer 32.
[0142] Step S162: Bond the connector 4 to the inner surface of the outer glass 1 through the opening 20;
[0143] Step S163: Join the connector 4 with the laminated glass.
[0144] In this embodiment, the main difference from the second embodiment described above is that it is not necessary to remove the adhesive layer area for filling the adhesive that is directly opposite the opening 20 area. When the adhesive layer area is not removed, it is equivalent to the bottom surface of the connector 4 being bonded to the inner surface of the outer glass 1 through both adhesive and adhesive layer 31. For laminated glass, in scenarios where the inner glass 2 and outer glass 1 are relatively thick, the connector 4 can be reliably connected and fixed to the laminated glass without removing the adhesive layer area, while also eliminating the need for the step of removing part of the adhesive layer area.
[0145] In some embodiments, a sealant 6 is also provided on the circumferential surface of the connector 4 that mates with the inner surface of the inner glass 2.
[0146] In this embodiment, a sealant 6 can be provided on the circumferential surface where the connector 4 mates with the inner surface of the inner glass 2 to improve the reliability and sealing of the connection at the mating position. Specifically, the sealant 6 may include any of the following: adhesive double-sided tape, PU adhesive, foam, etc.
[0147] When the sealant 6 is a double-sided adhesive, the double-sided adhesive can be 3M adhesive, etc. The sealant 6 can be directly adhered to the inner glass 2, and can be used to help fix the connector 4 to the laminated glass, and play a sealing role after the glass is assembled.
[0148] When the sealant 6 is PU adhesive, the connector 4 can be glued to the inner glass 2 in advance for fixation, and it can also play a sealing role after the glass is assembled.
[0149] When the sealant 6 is foam, the foam can also be used to seal the glass. When the connector 4 is assembled, the connector 4 with foam can be fixed to the inner glass 2 with instant adhesive or the like.
[0150] Please see Figure 2 Another method for setting a laminated glass conductive component provided in this application embodiment may include the following steps:
[0151] Step S11: Drill a hole at a predetermined position in the inner glass 2 to form an opening 20 of a predetermined size;
[0152] Step S13: Extend the conductive line 321 of the functional layer 32 into the opening 20;
[0153] Step S15: Lay the laminated glass together;
[0154] Step S17: Inject the laminated glass and connector 4 together as a single piece, and fix the connector 4 and the laminated glass together by the connecting edge 51 formed by injection molding between them.
[0155] Please refer to the following: Figure 3 , Figure 4 , Figure 9 and Figure 10 In this embodiment, the application mainly targets laminated glass that requires injection molding edge banding 52. During the injection molding edge banding 52 process, the periphery of the opening 20 of the inner glass 2 is protected by the connecting edge banding 51, and the connector 4 can be tightly fixed to the laminated glass. The edge banding material fills the opening 20, and the resulting connecting edge banding 51 can ensure the sealing of the opening 20.
[0156] In this embodiment, the same or similar aspects as those in the above embodiments, such as the step of making an opening 20 on the inner glass 2, can be referred to the specific description of the above embodiments, and will not be elaborated here.
[0157] After the opening 20 is formed on the inner glass 2, the conductive wire 321 of the laminated glass functional layer 32 extends into the opening 20, and then the laminated glass is assembled. Then the assembled laminated glass and connector 4 are placed into the edge-sealing mold for integral injection molding (Note: The bottom surface of the conductive plug 42 of connector 4 contacts the conductive wire 321 in the opening 20 to achieve electrical conduction). After injection molding, connector 4 and laminated glass are fixed together by connecting edge-sealing 51.
[0158] The connecting edge 51 of this injection molding solution serves to bond the connector 4 to the laminated glass, allowing the connector 4 to be subjected to more even force (the force is distributed to the inner surfaces of the inner glass 2 and the outer glass 1), reducing the risk of excessive force applied to the connector 4 when inserting external connector plugs on site, which could lead to glass breakage. It also protects the opening 20 of the inner glass 2; in addition, it also contributes to making the installation appearance more aesthetically pleasing.
[0159] After the OEM installs the glass assembly, the on-site operator directly inserts the vehicle power harness head into this connector 4, thereby enabling power to be supplied to the glass functional layer 32.
[0160] It should be noted that when installing connector 4, the conductive wire 321 of functional layer 32 must be in contact with the conductive wire 321 at the bottom of connector 4 so that power can be supplied to functional layer 32.
[0161] In the above way, the car's internal power supply can be quickly connected to the glass functional layer 32 to realize the functions corresponding to the functional layer 32, such as dimming, heating or other functions, and can also prevent problems such as glass cracking or water leakage when PU glue is applied during vehicle installation.
[0162] Overall, the method for setting the conductive component of laminated glass provided in this application can achieve the following technical effects:
[0163] By drilling holes in the inner glass 2 to lead out the conductive wire 321, the water leakage problem caused by direct contact between the conductive wire 321 and the PU adhesive used in the vehicle is avoided.
[0164] By innovating the existing method of leading out and fixing the conductive wire 321 in laminated glass, the laminated glass obtained by the above method can avoid the problem of glass cracking caused by the conductive wire 321 squeezing the glass during the injection molding process, which is caused by the conductive wire 321 squeezing the glass and affecting the glass strength.
[0165] By combining the lead-out conductive wire 321 with the external plug to form a connector 4, the PVB or heat-sensitive adhesive melted in the lamination process is fixed to the inner glass 2 / outer glass 1. The vehicle power supply is directly inserted into the connector 4 on this laminated glass to supply power to the functional layer 32; this reduces the installation process of the OEM, optimizes the installation space, improves production efficiency and saves related costs.
[0166] By fixing the connector 4 to the glass through integrated injection molding, it can also protect the opening 20 on the inner glass 2, increase the pressing strength, and reduce the risk of glass breakage.
[0167] It should be noted that in the description of this application, the terms "first," "second," etc., are used only for descriptive purposes and to distinguish similar objects; there is no order between them, nor should they be construed as indicating or implying relative importance. Furthermore, in the description of this application, unless otherwise stated, "multiple" means two or more.
[0168] The various embodiments described in this specification are presented in a progressive manner. The same or similar parts between the embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments.
[0169] The above are merely a few embodiments of the present invention. Although the embodiments disclosed in the present invention are as described above, the content is only for the purpose of facilitating understanding of the present invention and is not intended to limit the present invention. Any person skilled in the art to which this invention pertains may make any modifications and changes in the form and details of the embodiments without departing from the spirit and scope disclosed in the present invention. However, the patent protection scope of the present invention shall still be determined by the scope defined in the appended claims.
Claims
1. A laminated glass, characterized in that, The laminated glass includes an inner glass pane, an outer glass pane, and a connecting functional layer disposed between the inner glass pane and the outer glass pane. The connecting functional layer includes an adhesive layer and a functional layer, and the functional layer is provided with conductive wires. The inner glass has an opening of a predetermined size at a predetermined position; a connector adapted to the opening is provided at the opening, the connector is integrally injection molded by the conductive wire of the functional layer and the conductive plug, the connector passes through the opening through the inner glass and is fixed to the laminated glass.
2. The laminated glass as described in claim 1, characterized in that, The connector has a bottom surface facing the outer glass pane, and the bottom surface is fixed to the inner surface of the outer glass pane by adhesive bonding.
3. The laminated glass as described in claim 2, characterized in that, The bonding method includes: the connector is bonded and fixed to the laminated glass by the adhesive layer that is melted during the lamination of the laminated glass.
4. The laminated glass as described in claim 3, characterized in that, The adhesive layer includes at least one layer of PVB film.
5. The laminated glass as described in claim 2, characterized in that, The bonding method includes: applying an adhesive to the bottom surface of the connector, and bonding and fixing the connector to the laminated glass using the adhesive or the adhesive and the adhesive layer during the lamination of the laminated glass.
6. The laminated glass as described in claim 5, characterized in that, The adhesive includes a heat-sensitive adhesive.
7. The laminated glass as described in claim 5, characterized in that, The adhesive layer has a region for filling the adhesive, the region for filling the adhesive is directly opposite the opening region, and the edge of the region for filling the adhesive is located between -0.5 mm and 3 mm from the edge of the opening.
8. The laminated glass as described in claim 1, characterized in that, The connector has a circumferential surface that mates with the inner surface of the inner glass, and a sealant is provided between the circumferential surface and the inner glass.
9. The laminated glass as described in claim 8, characterized in that, The sealant includes any one of the following: double-sided adhesive, PU adhesive, or foam.
10. The laminated glass as claimed in claim 8, characterized in that, Before lamination, the gap between the circumferential surface of the connector that mates with the inner surface of the inner glass and the inner surface of the inner glass is less than 1.5 mm.
11. The laminated glass as claimed in claim 1, characterized in that, The connector is fixed to the laminated glass by a connecting edge formed by injection molding between the two.
12. The laminated glass as claimed in claim 11, characterized in that, The connector includes a connecting base, which is injection molded from insulating plastic. The connecting edge is disposed between the connecting base and the inner glass sheet. The edge of the laminated glass is also provided with an injection molded edge. A sealant is disposed between the injection molded edge and the connecting edge.
13. A vehicle, characterized in that, The vehicle is equipped with laminated glass as described in any one of claims 1-12.
14. A method for setting a conductive component in laminated glass, characterized in that, The laminated glass includes an inner glass pane, an outer glass pane, and a connecting functional layer disposed between the inner glass pane and the outer glass pane. The connecting functional layer includes an adhesive layer and a functional layer. The method for setting the conductive component of the laminated glass includes: A hole is drilled at a predetermined position in the inner glass to form an opening of a predetermined size; The conductive wires of the functional layer are integrally injection molded with the conductive plug to form a connector that is compatible with the opening; The connector is passed through the opening into the inner glass pane and fixed to the laminated glass.
15. The method for setting the conductive component of laminated glass as described in claim 14, characterized in that, The connector is fixed to the laminated glass in the following ways: Connect the conductive part of the connector to the conductive line of the functional layer, and make the connector contact the outer glass through the adhesive layer; The connector is then joined to the laminated glass.
16. The method for setting the conductive component of laminated glass as described in claim 15, characterized in that, The adhesive layer includes a PVB film, and the bonding of the connector to the laminated glass specifically includes: The connector and the laminated glass are placed in an autoclave, and a predetermined temperature and pressure are applied to the autoclave. Under the predetermined temperature and pressure conditions of the autoclave, the PVB film gradually melts, bonding the outer glass and the inner glass together, while simultaneously bonding the connector to the outer glass.
17. The method for setting the conductive component of laminated glass as described in claim 14, characterized in that, The connector is fixed to the laminated glass in the following ways: Remove the adhesive layer from the area where the inner surface of the outer glass sheet corresponds to the opening; The conductive part of the connector is inserted between the inner glass and the outer glass and connected to the conductive line of the functional layer. The connector is bonded to the area on the inner surface of the outer glass where the adhesive layer has been removed; The connector is then joined to the laminated glass.
18. The method for setting the conductive component of laminated glass as described in claim 14, characterized in that, The connector is fixed to the laminated glass in the following ways: The conductive part of the connector is inserted between the inner glass and the outer glass and connected to the conductive line of the functional layer. The connector is bonded to the inner surface of the outer glass sheet through the opening; The connector is then joined to the laminated glass.
19. The method for setting the conductive component of laminated glass as described in claim 17 or 18, characterized in that, The specific steps of joining the connector with the laminated glass include: The connector and the laminated glass are placed in an autoclave, and a predetermined temperature and pressure are applied to the autoclave. Under the predetermined temperature and pressure conditions of the autoclave, the outer glass and the inner glass are bonded by melting the PVB film. The connector and the outer glass are bonded by a heat-sensitive adhesive or a heat-sensitive adhesive and the adhesive layer.
20. A method for setting a conductive component in laminated glass, characterized in that, The laminated glass includes an inner glass pane, an outer glass pane, and a connecting functional layer disposed between the inner glass pane and the outer glass pane. The connecting functional layer includes an adhesive layer and a functional layer. The method for setting the conductive component of the laminated glass includes: A hole is drilled at a predetermined position in the inner glass to form an opening of a predetermined size; The conductive wires of the functional layer are extended into the opening; The laminated glass is then laminated together. The laminated glass and the connector are integrally injection molded together, and the connector and the laminated glass are fixed together by a connecting edge formed by injection molding between them.
Citation Information
Patent Citations
Compound functional sandwich glass containing metal nano-structured conductive layer
CN102173133A
Laminated glass having a connector, method of manufacturing the same and use of the same
US20230087157A1